What are the disadvantages of QR codes in restaurants?

The honest disadvantages of QR code menus: some guests simply dislike them — older diners, people with low phone batteries or poor eyesight, and anyone who feels a menu should be part of the table experience. Dead zones and weak WiFi can make the menu slow to load exactly when the restaurant is busiest. And a QR-only policy can read as cost-cutting rather than hospitality.

The fixes are equally honest: always keep a few paper menus available on request, make the linked menu a fast mobile page rather than a huge PDF, and place codes flat-glare-free at eye level. Used as an option rather than a mandate — plus instant price updates and no reprints — most of the downsides disappear while the operational wins stay.