There are stores trialling exactly your preferred method. One of my local supermarket chains has portable barcode scanners on a wall. You pick one up, scan your groceries as you collect them, then take the scanner to a self checkout that links to the scanner. At that point you pay for your items and leave.
Best Buy started doing this with their app. I've used it multiple times already. It's so convenient. Scan the barcode with your camera in the app, it adds to the cart, pay when you're done.
Anecdotal experience: Unfortunately, products that are locked up create a problem. I went in for two items. One of which was a single RAM stick for laptops. The employee refused to give me it even though I was literally going to pay for it on the spot as I had already collected the other item I wanted. He insisted it goes to the register per policy. I quickly got the barcode as he held it, then paid. "There. Paid for. See" as I showed him the screen. Dude was so annoyed as he handed me the RAM.
They aren’t just trialing it. I’ve been shopping this way for 15 years. Once the system was down so I went to another location. I won’t shop without a handheld scanner ever again.
My local grocery store does it with their smartphone app. I shop this way almost every time. Bag as I go, then stop at a special self checkout at the end to pay.
Nah, when you are on a late night run on an (almost, max. 2 pax) empty bus, especially the last run, especially in shitty weather, it's appropriate to say "Nacht" when you leave.
You form a special bond then and there. The driver is your hero who brings you home in the most shittiest shift.
Scan and Go is becoming very wide spread in Denmark. It's lovely! Cuts down the time for a quick shopping trip on the way home from work to less than half
Last I checked you had to be a Walmart+ member to do that. It used to be available to everyone, but then they put it behind paying them a monthly fee to be able to do it.
Is self scan that rare around you? One of our (Latvia) two big brand supermarkets have scanners you carry around, then deposit at the slef checkout lines. The other one, however, I just scan everything with my phone, then at checkout scan a QR code with my phone and pay.
Sure, it works great if you're a single person who doesn't have all that much to buy, but here's the thing; if you're shopping for a family or a multi person household or whatever, and you have to buy a lot of things at once, your self checkouts just plain suck ass because pretty much no matter what you do, you'll get dinged with an error message every ten or 12 items and have to wait for the overworked and underpaid attendant to come free you up so you can keep going until the next inevitable fuckup.
Self checkout is fine if you have something like 15 or less items, but anything more than that and it's more trouble than it's worth.