The practical difference is that physical buttons can be changed without looking, since they provide tactile feedback and they're physically present in the worl

The practical difference is that physical buttons can be changed without looking, since they provide tactile feedback and they're physically present in the world. Touchscreens require looking, even if you're pretty familiar with the interface, because you can miss. Of course even this is kind of moot, because a lot of car manufacturers put vital controls on the touchscreen. I mean, Teslas have the fucking gear shift on the touchscreen.