Some assumptions it seems you’re making:
* The customer has a phone
* The customer knows how to use the phone to do what you’re expecting
* The customer has cell service in their location
* The customer has the patience or ability to order before arriving at the restaurant
Sadly many restaurants already make same assumptions with QR code menu replacements. And the worst thing is they keep them despite everybody hating them.
Yes, I would like to go to this restaurant that sets higher expectations of its customers.