Why do modern cars only have touchscreens?

I understand that large screens in modern cars look cool and allow you to control everything from one interface. However, for people who only have a touchscreen and no physical buttons, they often need to look away from the road just to perform simple tasks, like turning on the A/C.

My main point is that it's dangerous.

Having a screen for things like a parking camera or a 360-degree camera is completely fine, but for everything else, physical buttons are far superior.

I also understand there are voice commands that you can use, however, having physical buttons is more convenient in my opinion.