Technology is so very different now, and people are much more technically savvy today than they used to be.
That being said, I managed the roll-out of a test project for Burger King in the Atlanta area about 20 years ago that was testing touch screen ordering by the restaurant customers. It was a disaster.
Customers tied up the touch screens for excessive amounts of time trying to decide what they wanted and how to order it. They couldn't customize the products that they ordered, so they complained to the fulfillment employees when they paid for and picked up their orders. The fulfillment people than had to take the product back and were not allowed to fix the problem, they were required to throw the product away and make new product like the customer wanted.
People were abusive of the touch screens, often sliming the screens with unrecognizable semi-liquid stuff that seemed like bio-hazardous material.
The technology was also subject to failure and a couple of the restaurants suffered from rats eating through the signal cables that attached the terminals to the servers.
But that was a long time ago. Maybe it will work now.
Tom in TN