[aren55555]

Probably because a physical menu actually takes less time to select a meal from. In the worst case, if every restaurant had their own menu app/site think about how long it would take a newcomer to install/navigate then figure out how the UI worked.

Plus you would still need to have physical menus as backup for those customers that don't have smartphones, are out of battery, etc.

I've seen some sushi spots have their menu on an iPad; and it worked pretty well. However, personally I also enjoy the conversational aspect of placing an order with a human server (with the interaction influencing the value of my tip).

This virtual menu concept brought this article to my mind: http://www.slate.com/articles/business/moneybox/2014/07/vira...