Not rare, but plenty don’t have cars. Public transport is insanely good here and if you live in the city you don’t need one really. When you do, you can rent or use a car sharing service.

I got one now because we had a baby recently and going with a stroller on the train every time is killer, and fitting/removing a car seat from a rental car gets tiring.

But for 9 years I was fine without owning a car. My wife doesn’t even have a license.