I know a couple of people my age (about 40) who really prefer not to drive, but it's such a strange preference IRL that I suspect most people online who claim that it's what they prefer have just never experienced how much better it is to have a car and live somewhere where driving is convenient.
I know that sounds patronizing but I was a bikes/mass transit supporter myself when I was younger and it was 100% because I hadn't learned how to drive and I didn't know what I was missing.