Would have to restructure the way cities are planned. In most of these European cities, everything you need is within walking distance.
It's not impossible though, just that oil lobbys are fighting tooth and nail to stop that from happening. Same with air travel lobbies constantly killing high speed rail.
Now that I think about it, that car being a status symbol starts real early. I remember being in high school, thinking that riding the bus in senior year was lame as opposed to having a car. Funny thing is, a few months later I was car-less on campus in college since the parking fees were exorbitant. We have to change our perception of public transport, by not listening to douchebags like Elon talking about public transport is "unsafe and dirty
".