Yes they're accepted in most places.Nice, the last time I asked this on CE people were looking at me funny like I'm talking in an alien language.
Except there's no barcode or anything. You can just hold your phone to the machine and it takes it
Yes, they're in America now. But most employees and a bunch of customers don't know how to use them and get a bench of errors. Then they either pay a different way or give up and leave.In due time, it was the same in my country too lol.
I've seen a lot more fail than actually work.