Research shows touchscreens are much more dangerous. Even voice control is more dangerous than buttons in all but a few cases (siri and Tesla bad, Toyota okay, etc.).
What research? how is it more dangerous? If your tesla regulates AC well and spotify doesn't play Ads or bad radio signal or bad songs. Then you don't have a need to touch the buttons of the radio or the AC. Why the touchscreen is there, is to have nice entertainment while you're charging!