The whole problem is that you are asking the individual to assume societal costs. The individual is only seeking to meet their personal needs, and is not ready to engage on social progress.

To them, the transition from full utility via their own car, to relying on public transit suggests there will be a time of hardship, where the system is not fully laid out, but their options are curtailed.

Getting over that hump is critical to progress, and cars will be an important part of the shift