Earlier quoted context omitted.
Many people don't just "happen" to be in a situation where they don't need a car, they actively put themselves in that situation by making many lifestyle choices. I changed jobs (twice) to move closer to home. I used to have a job with a 45 - 60 minute car commute (the train was over 2 hours due to the need to make 2 connections), then took a job that was only about 10 miles away (just under an hour by bike, 12 - 30…
Sounds like you have the luxury of picking and choosing your jobs. Most American's don't.
Many people say that they don't have the option to change jobs, yet when they get laid off or the factory where they work shuts down, they find a way to survive even if they have to make sacrifices to do so.