The problem is most people don't live in 15 minute cities and it's impossible to turn the suburbs into 15 minute cities as most things are just physically too far apart.

If you live in a gigantic McMansion neighborhood that takes 5 minutes to get out of by car and then your job is an additional 20 miles away there is no bus or train solution - you'll have to have a car.

Funny you should mention living in your car. I used to have a 40 mi commute from my suburban town, each way, to work. I lived slightly north of Baltimore and commuted to just outside of DC. I would spend an hour minimum each way driving. When traffic was bad easy 2 hours. I did this for 4 years and it was soul destroying, but it was an extremely lucrative job.

Then I found a job in my little suburb that pays about the same amount of money and it's close enough I can ride my bike to, which I do sometimes when it's not hot, by car it's only about 5 minutes. The extra time I've gotten back has been amazing and looking back I would have taken 20% pay cut to not have to do that horrible commute.

That is not a solution for everyone as there aren't enough jobs in the suburbs to support the population. They're called bedroom communities for a reason.

I'm really not pro or anti car. I just think you have to be realistic. The realistic part is the suburbs are just too spaced out and too far from jobs to have a functioning mass transit system.