A restaurant is fundamentally selling an experience. These screens do not improve the experience. Therefore, they have some cost to the business. The question is whether the cost is recuperated.
This is no pressure. You can exert pressure by saying that you are cancelling the transaction because of the tipping screen and you'll eat somewhere else.
You could tell them that you are very happy to pay them the price they printed on the menu and that they can present you with a payment terminal charging exactly that price, but that you will not do that job for them. Basically make the waiter select the 0% option.
But in the end you'll only annoy the waiter and not the owner of the restaurant who is actually running the tipping scam.
At least in that case you can safely select a 0 tip. It's worse when you pay up front and have to worry about a lower than expected tip resulting in some kind of retribution from the staff.
Yeah that's not possible. When you're presented with the terminal the food is already in your system.
Or maybe you can be like our former Ministry of Culture, Jack Lang, who just resigned from a prestigious, if useless, post in the wake of the Epstein scandal. It was revealed that he never paid for anything in his 60+ years of public "service", always leaving restaurants, hotels, etc. without footing the bill.
For you and me, this would be called stealing and would eventually land us in jail. But if you're a minister in France it's called "living like a prince" and being "a little stingy".
I saw this in two restaurants already and I am pissed