Comment by greengreengrass

Yeah, they exist. I’ve also been to places where they take your order in the conventional way, but then allow you to scan a QR code to pay and go.

Sure, the process of asking for the bill and doing the dance where you check it, they come back with the card machine etc. can be mightily inconvenient especially if you’re in a rush. But I can just walk up to someone and pay there and then.

Whenever I’ve tried to use them, these QR code payment flows normally try to charge me, the patron, a service fee for the convenience, so I’ve never actually gone through with it.