We can manually enter the bar codes in the usa. It’s just that my fellow Americans are stupid.

Alcohol needs an ID scan.

Discount stickers work the same here, but again, Americans.

I think if I buy boxes the 2 upc thing becomes an issue.

Accidental scans need a person to confirm you didn’t steal. Although I know the people where I go and they’ll just approve it remotely when it pops up.