No one ever requested screens instead of buttons. It’s probably some BS some CEO came up with and forced the engineers to implement.

Not sure how related this is but in my field, designing industrial control systems, each seperate physical button is about $100 added to the cost over a touchscreen. We call touchscreens HMIs just to be special and sound smart. I imagine the numbers are very similar for cars but I don’t have data to back that up.

Personally I think that the following car functions should be mandatory physical controls - wipers, indicators, hazards, side/headlights, door locks, defogger / defroster, electronic parking brake. forward/reverse/neutral/park. And they should be controls that have fixed position in the car (i.e. not on the wheel) with positive and negative feedback.

And fuck Tesla or any other manufacturer that wants to cheap out on a couple of bucks by removing them. Removing physical controls has obvious safety implications to drivers who are distracted trying to find icons on a tablet.