I am very possibly incorrect in my assumption and if so I apologize but it does sound like you don't have kids. For me the idea of having kids and not having a car is choosing to play a first world life on hard mode. I know there are a million other issues in the world but not having a car to move my kids / pets / groceries / hardware is just a complicating factor I dont want.

With that said, more power to those people that don't want or need one, life is all about what works for the individual.