It seems to have died out in the UK. A couple of times I was confronted with one I just gave them a puzzled look: "Phone?" they ask, "No phone?" I reply, the menu comes out.

Plenty of other restaurants.

And what if you don't have a phone on you?

Old business proverb: "Never turn away a paying customer. They'll never come through your door again."

I hate having to navigate the shitty qr menus