Lots of people are single. Lots of people's kids are grown. Lots of people could own one car for the kids stuff and car-share the second vehicle as needed. Even

Lots of people are single. Lots of people's kids are grown. Lots of people could own one car for the kids stuff and car-share the second vehicle as needed. Even with private ownership for cases like children, the total number of cars on the road could decrease considerably.