I have never understood that.

I live near a university that attracts quite a few international students/lecturers and I’ve often witnessed the exact opposite of this. You’re outside in the middle of summer, trying not to die of a heat stroke, when a obviously non-native person walks by wearing a winter coat and a hat.
- Yep I saw some Indians near Atlanta who were wearing big coats when it was just a hair below 70 F outdoors. I was out there loading stuff into my car in shorts and a T-shirt and they looked at me funny.
  The opposite of that, that I also saw was my portly Eskimo friend, who was in shorts and a T-shirt in the actual winter time when I needed a big coat. He was like "You think this is cold?"
  
  Hawaii here. Our line is about 70 too. That's when we wear socks with out slippers.
  
  I mean room temperature is 20 °C (68 °F) so wearing shorts and T-shirt should be the norm imo. If it isn't colder outside than inside, why put on more clothes?
- Wife is a 98lb. Pilipino living in NW Florida.
  72°: "Babe! It is so cold!"
  She literally has no idea how to dress warmly. Trying to get the idea of layers into her head, but I'm failing so far.
  
  Can confirm, layers don't exist in some cultures. It's either tank top or parka. No in between.
- When I visit friends in northern Germany they also run around like it's summer when it's close to winter cold for me.
  I had a friend jump into the North Sea to rescue a beer crate we put into the water for staying ice cold that swam away. While I was freezing on two blankets near the fire in a coat.
  That beer was also too cold. None of their behaviour made any sense.
  
  The thought of warming up beer to make it more drinkable disturbs me
- See this in Dubai. 70F outside and several people were bundled up.
  
  All over Asia every time the temperature in the evening goes from scorching to bearable for me, everybody there starts pulling out sweaters and jackets.
- That was me, I live in the tropics near the mountains where you can go from 42⁰ at crazy humidity near sea level to 15⁰ up around 2000m in about an hour's drive. I lived near sea level and when we were kids we'd meet halfway with friends who lived in the mountains. They'd be running around in just swimsuits and I'd be sitting on the side wearing 3 layers.
- How cold is air?
- This is me. I have had people say I make them sweat by looking at me when I wear a sweater in 75F just because it’s not yet hot enough to make me take it off.

This is how I met my wife 10 years ago. It was -20 Celsius outside and I was in shorts waiting for a bus. She came over to ask why I was wearing shorts, which sparked conversations and now we've been married for over 5 years.
- Well that's adorable
  
  Okay sure... But moreso confusing... Like, damn... That's cold.
  Do that person's legs just not have feeling?

I am this mans, and to be honest if there is no wind, I wouldnt be wearing the hoodie. Just run super hot. If I could afford it I would keep the house at like 62 and still have the ceiling fans on.
- I am also this man but only because I severely misjudged the temperature outside.
- That's a very southern idea of "cold" though.
  It's still autumn on the Canadian east coast, and temperatures are now staying below the freezing point. Still seeing the occasional shorts wearer, now with boots on.
  
  I was born in Minnesota, so I know cold, in the south they think snow is cold, they are unaware of so cold it cant snow. I still shovel snow in my crocs
  
  The shorts kind of help feel warmer if you are bundled up everywhere else. It focuses the feeling of cold on your legs where it feels less bothersome.
  
  As an Okie, I'll admit that our "cold" isn't truly cold. Our coldest nights on average are like -3°C. In fact, the coldest it's ever been in my neck of the woods is -25°C, and that was that freak polar vortex that knocked out power in Texas for several days in Feb '21. The coldest verified recorded temperature in Oklahoma happened in Nowata in Feb 2011, where it dipped to -35°C. And that was also a freak occurrence, and it was 24°C again within a few days. In my part of the state, it gets above freezing point about 355 days of the year. Rarely do we ever spend a full 24 hours below freezing, though it happens once or twice a year. We also get a decent snow or two most years, but it never sticks around for long. New snow is beautiful. But once it's a day or two old, it's disgusting. It's nice that it all melts away within a few days.
  And yes, I am a white man, and I wear shorts all year and in any weather.
  Don't ask me about the hot, humid hell we become over summer.
  
  Am white guy that cab spend hours in a -10F freezer with just a lightweight coat and beanie. I wear shorts as long as it's not windy and walked a mile in -15F one winter. That was a bit cold and had to take a warm bath after that.
- Might I recommend Denmark? Too damn cold here much of the year and other than the weather, which it sounds like you might enjoy, it's an excellent place to live!
  
  We can still easily wear shorts at least part way into October in Denmark. It's a great place to live. I do hate the rain though.
- I keep mine at 69! Heheheheheh
  Ok, sorry. I've ruined your perfectly nice comment with sophomoric humor. I apologize.
  
  Nice.
  
  Gotta keep conditions right, just in case.

And for us on the otherside, we see people bundled up like their going on an Artic expedition when its 50F out and they are walking 10 feet from their heated car to a heated store.
Being sweaty all the time sucks. Thats really what it is
- Hi, that's me. I can handle endless heat, but fuck temps under 60.
  
  Greetings, I'm your opposite. I can handle bitter cold just fine, but I melt at 60F.
  
  That's me as well. I typically don't even start thinking about shorts until the triple digits.
  On the other hand... I'm starting to layer up at about 65...
  I do also have a higher than normal body temperature. I'm usually hovering around 99.3 and I always have to explain to the doctor that I'm not running a fever that's just my normal temp.
- Yeah, basically.
  A little bit of cold vs sweating
  I'll take the cold.

You'll be hot as fuck in your home, and then a woman will just turn the AC off and complain about how cold she is
- Sir I use my space heater in my home in July, and I live in the US South.
  I'm shocked my husband has not divorced me over it yet tbh, but he can pry it from my (literally) cold, dead hands.
  
  He's probably waiting for it to catch fire and end his misery. The most passive aggressive murder-suicide of all time.
  
  Space heaters are fantastic! My partner and I have very different ideas of comfortable, and they make liberal use of blankets and space heaters. That's waaaay better than turning the entire house into an oven! Plus I still make use of the space heaters, too -- making the bathroom toasty so you're not freezing when you step out of the shower is the best.
- It's more likely that it's from poor blood circulation than actually being cold. Commonly, because they need more cardio.
  
  Women are biologically more susceptible to getting cold than men are (or conversely, men are more susceptible to getting hot than women are). Also most people in America need more cardio; it's not a gender thing.

Nation's Big Guys in Shorts Announce They Run Hot
- LOL, this was great. Im a big guy who wears shorts cause I like the cold, and I have to ask, what other answer do yall expect to the stupid question of "aren't you cold?" or "how are you not cold?"
  
  I had a buddy who never wore pants even in 20 below temps all through school.
- This unironically
  I work in Louisiana, people down there freak the fuck out if it drops to low 60s and I'm in a Tshirt and shorts.
  Granted I'll wear exactly that in 30 degrees
  
  Lived in Phoenix for a bit, and was surprised the first autumn when people started wearing jackets in the high 60s

Yeah but we also get really hot so we're sucking during August. Meanwhile someone is walking around in a 3 piece suit without so much as a drop of sweat.
- My wife and I have been watching "Ballers" and thing I've been trying to figure out the whole time is, who the hell walks around Miami all day in a suit?
  
  A good wool suit is quite insulating. I wore a 3 piece wool suit this summer when it was a bit warm. I wasn't really sweating any more than I would be if I was wearing shorts and a Tee shirt.
- I swear I sweat constantly and its so annoying Like I'm not bothered by the heat I'm bothered by the constant feeling of being soaked in sweat

Probably a Midwesterner.
- It's like a game of chicken where you win by being the last one wearing shorts deep into winter.
- Or a senator from Pennsylvania🤘
- Can confirm, am that guy.

Funny story.
I lost 50lbs and gained 50 lbs within a year.
I can say, without a doubt, being fat definitely makes the air feel warmer. I don't even think it makes sense, since your skin senses it. But hot damn if my house goes above 72F I have to keep towels around when I'm heavy
- It’s not just a fat or muscle thing. Those both contribute of course; fat insulates and muscle produces more heat. But the real player is the surface area to volume ratio.
  A bigger person has a lot more volume than they have a bigger surface area, and since heat is lost through the skin this has a major impact.
- I don't even think it makes sense, since your skin senses it.
  It makes sense when you learn that your skin doesn't sense ambient temperature at all, but rather it senses the rate at which you are losing or gaining body heat. This is why metal can feel cold at room temperature while something like a blanket actually feels room temp, it's a better heat conductor so it absorbs body heat from you faster.
  Having more body mass means you produce more body heat at any given time, so the rate at which you lose body heat to the air is decreased, making you warmer.
- Could it just be a weight thing? So not necessarily fat, muscle could also help.
  If you're body is heating your whole body, the amount of heat added will increase linearly with volume. But your surface area, i.e. the skin, increases sublinearly with volume. So you get more heat per surface unit?
  
  Nah, it's fat. That's why polar animals have blubber
  
  I don't know... , I've never been fat and I completely disregard the cold like it's not even there

This is absolutely a testosterone thing according to my transmasc friends.
- Damn that's next level lol. I thought I had good cold resistance until I read that lmao
- Yep. My friend started testosterone recently and said that he went from always too cold to being a furnace.
- Trans men once again giving me gender envy cause I'm cis and freezing.
  
  spoonful of testosterone in your morning cereal will fix it in no time
- Is it? Because I’m a transwoman and my levels are all within cis woman ranges for going on a decade now, yet I’m basically full-time Chandra, Awakened Inferno unless it’s subzero temps outside.
  
  I think as a rule of thumb it is, but everyone's body is different.

Midwest obesity benefits.

As a non-white man from a tropical country now living in a colder state in the USA, this is somehow me too.
- Don’t feel bad, it was just someone being racist

I feel seen.
Use your legs for a bit and they won't get as cold.

There's a lot of bullshit in this thread. People can wear shorts in cold weather either a) if it's not that cold, or b) if it's not for a long period of time. I've been in -50 and -60 degrees fahrenheit weather in Alaska and Montana and Wyoming and when it gets that cold any exposed skin is a huge liability and will become frostbitten and/or severely painful in a very short amount of time. Left untreated it will turn necrotic which is not good. You also, pretty much no matter what you're wearing, can't stop moving at those temps unless you are in some kind of shelter.
When I worked on The Slope in Alaska back in the 90s we used to do 20 minutes outside and then 20 minutes inside for full 16-hour shifts.
That said, it can be kind of invigorating and of course you do get used to it and learn to not let it bother you.
Edit: Also, if anyone cares, I'm not proud of having worked for Big Oil on The Slope back in the day. At the time I was young, it was a big adventure and it paid big money that allowed me to do a lot of other things that I otherwise would never have been able to do. Also, it was all union work through IUPAT DC5 which I am still an active member/activist of today.

It’s called brown adipose tissue aka brown fat. Old people are always cold because they often lack brown fat.
- That's why I'm storing up on brown fat in my youth.
- Don't non-baby humans lack brown fat in general?
  
  Not really. Babies have brown fat as default. Adults have white fat which can turn brown in response to cold exposure (not as much as in babies, so it's also called beige fat). Brown of beige though, it works the same - there's a high count of mitochondria in the cells and the tissue can produce heat and make you feel (and be) warmer. It also helps with weight loss, stimulates the immune system and lowers inflammation.

I've been spotted!

In response to everyone's sandals comments, you're really missing out if you don't go barefoot in the snow every now and then, so long as there's only a light layer. Every step is cushioned and refreshing. It's good endorphins all around, like taking a breath of fresh air after leaving a stuffy room. When the snow gets high enough that it kicks up onto the tops of your toes, that's cold.
- I have Raynaud's, so a hearty "Fuck no" to that.
  
  In the words of Kenny Hotz, "Why won't it warm up?!"
  
  Hmm see going barefoot or flip flops everywhere stops my Raynaud's from flaring up. Different for everyone I guess.
- I like it in light powder, in sticky snow, that's a hard pass.
- All right I'll try. What the hell.

Hey don't forget my flip flops!
- With socks too! Gotta keep them toesies warm
  This is my first winter after turning 30 and suddenly socks and sandals is the greatest thing why do people shit on this? My outfit for grocery shopping today was literally shorts, hoodie, socks, sandals (slides style with the single thick band over the arch)
  
  Honestly the only issue I have with socks and sandals is the one where the support goes in-between your first 2 toes
  I still find it comfortable tho lmao

When I lived in Stockholm my roommate was from Florida. He never left the house with anything but shorts on, even in -20°C, when I (Icelander) was bundled up in three layers, a beanie and mittens.
I don't know how he could withstand it.
- Maybe he didn't own any other clothes and after a certain time he had to keep up appearances. I'm picturing him going to extreme lengths to get realistic prosthetic finger replacements as they suffered from frost bite... because everyone thought it was incredible that he was fine in shorts.
  
  They've done studies on Win Hof and some people at least are just physiologically resistant to the cold.
- Florida man

John Fetterman has entered the chat.

The importance of properly winterizing for February starts with suffering through October and November.
- Gotta build that brown fat.

In my hometown, we had "Mr. Noshirt". He'd walk everywhere in any weather either without a shirt on, or with a flimsy dress shirt unbuttoned the whole way. In Canada, so it got cold. Rumors were "couldn't feel cold" or the more likely "mental health problems."
- Randy bobandy just out there chugging cheese burgers. Noamsayin.
- I think you eventually get used to it whatever you wear
  I tend to be the shorts and t shirt in the middle of winter guy, but when I put a hoodie on it's the most comfortable, perfect temperature you could imagine
  
  As I get older, the cold bothers me more. Used to be, I could go outside and throw snowballs with my bare hands no problem. Nowadays, the temperature drops below 10, and suddenly my hands physically hurt if they get cold. It's not even related to how physically fit I am given I started a five-day-a-week gym habit eight years ago and am in some of the best shape of my life. It's just stupid aging as far as I can tell.

That's one of the few benefits of being fat.
- Actually muscles are what keeps you warm.
  The amount of fat required to provide significant insulation is not really feasible for humans with the addition that the feeling of being cold might even be increased.
  https://weather.com/health/news/do-fat-people-stay-warmer-cold-weather-thin-people-20140103
  
  NACKCHYUALLY

And then there's those of us on the other side of the hemisphere, where december is summer and 30°C is normal everyday temperature.
I literally start shivering at anything below 20°C.
- I start overheating past 30 I would hate it there

He's hacking a dart too
- I'm surprised I'm not hacking a dart right now.

I am that white man. I’m just not cold, sorry about your luck I guess.

I mean you kinda get used to the cold after a while lol

This is me. Am white dad on vacation this week. It’s not that cold, like 70F, but there has been chilling rain all week. I’m the guy not only soaked in my shorts and t-shirt among a sea of ponchos, but still sticking my head into the fountains and stuff.

Arctic creature here. I wear a kilt and t-shirt all year round. Sandals too, unless snow is recent enough that it won't have been cleared from wherever I'll be walking.

This is my brother. The weirdo wears shorts as long as it is at least -20 F.

Cool Runnings.
- Here is an alternative Piped link(s):
  Cool Runnings.
  Piped is a privacy-respecting open-source alternative frontend to YouTube.
  I'm open-source; check me out at GitHub.
- Sanka, you dead?
  
  Ya, mon.

I'm also wearing Olukai flip flops.

The older i get the more im like this

They are asserting dominance. When in doubt, it's always that.

If he's a postie then it's actually a legal requirement.

That's how you spot the NPCs in the simulation

And sandals.
- Plus overweight, bearded, and balding with a ponytail.
  
  I feel called out.

And slaps.

- What's the right way to go up a 10000 foot mountain?

I got to visit Scotland once and was told in no uncertain terms that we were not to refer to the weather as "cold."
It might be brisk. It might even be bracing. But never cold. Has to be something to it.

Yeah that's me, hi. It's not my fault you can't even take the temp change when you sip on your pumpkin spice iced latte.