I disagree overall (you're definitely right about it being an abomination in cars though). Touchscreens are bad when they move (spaceship launch, air turbulance, waves, uneven road). There's also a direct relationship with how bad touchscreens are, with how often you need to 'keep your eyes on the road'. Space, you don't really have to look out the window, planes you don't really need to look if you're IFR in IMC, boats rarely have traffic on the open water and don't have to stay in a narrow lane, cars have lots of traffic and narrow lanes. So I wouldn't say "perfect" or "good", but perhaps you meant various degrees of "forgiving"?