I can hear people have a normal conversation on the street from inside my house. The walls are thin enough to let in and out all sound, but thick enough to keep in the heat in winter.
I live in a really mild climate and like to keep my windows open all the time. But fuck, I hate the vroom vrooms racing all day and night, and hearing people walking around with bluetooth boomboxes... like, when did that become a thing? headphones and jam friend, jeeeeeze.... they don't even sound good.
I don't mind the music, but I do mind domestic disputes. The house beside mine is a rental and all of the tenants that have been there since I've moved in have been the worst. Trashy and constant domestic disputes and leaving their kids and dogs to just roam. I think the latest people got evicted because I haven't seen them or their dog for a really long time. It's been nice and quiet since they disappeared and I love it lol.
I added a bunch of insulation to my attic and that quieted things down. I think a lot of the sound was coming in the soffit vents and then through the ceiling of the room instead of the walls themselves.