> Because many people need a car to function (get to work, shops, take kids to school).

I'm not sure that's a compelling argument. One could easily counter that people could move to be closer to work and/or school. Cars are "needed" because of the life choices people make.

> Nobody needs a gun to function.

If we apply consistent logic, there are people who need guns to function just as much as others need cars. Folks who live in the wilderness of Alaska and make a substantial living off the land need guns to hunt animals and acquire food. Sure they could hunt with a bow, but people could also get to work on bicycles.