When auto-driving cars become the most common vehicles on the road, the rules will change. Speed limits may go up, since robot reaction times are much better than humans'. 11-year-old kids could borrow the car on their own. You could ride in your car to work, then send it home for the day, or call it to pick you up from wherever you are. You probably wouldn't need to find a parking spot ever again - just let the car drop you off and find a place to rest.
On the flip side, would you get in trouble for riding in a robot car drunk or asleep? How much responsibility would we expect "drivers" to accept in the case of a crash? Would we need robot cars to pass a driving exam? Would you, as the owner, even need to come along for that, or just let the examiner take care of things? Perhaps it would just mean a different class of license, only for robot cars, where they are expected to do most of the work.
Mokalus of Borg
PS - That's probably what we'll get first.
PPS - But it will probably still be age-restricted.