"Should they also democratically decide what car you should drive?" It depends. Most western european countries have fairly strict regulations on maintenance,

"Should they also democratically decide what car you should drive?" It depends. Most western european countries have fairly strict regulations on maintenance, road-worthiness, emissions and sound. Here in California we have relatively strict emissions regulations. These regulations were, essentially, decided by a democratic process. Presumably if they attempted to regulate color it would fail at the polls.