This really does not surprise me, I think it goes back to the prompt suggesting a tip amount. It kind of takes control away from the customer buy saying "You s

This really does not surprise me, I think it goes back to the prompt suggesting a tip amount. It kind of takes control away from the customer buy saying "You should tip one of these amounts". I think people would rather have a line were you write down the amount instead of going through prompts. Plus to make matters worse, in many cases the server cam watch what you do.