> And most people, a.k.a. "you," are probably not even willing to do that.
I'll be honest - right now, I fall into that camp. I enjoy driving. I enjoy my vehicles, both on and off the road. Probably not the right answer, but as you noted, even if I and everyone else stopped - it's too late. It was probably too late back when I was a child, and didn't even know how to drive.
But let's say I were willing. How am I to get to my job?
I live in Phoenix, Arizona - where in the summertime, midnight temperatures can easily break 100 degrees F; yes, it is literally possible here to fry an egg on the sidewalk during the daytime in the summer (you can use a slow cooker inside your car, too! multipurpose vehicles!).
I live approximately 30 minutes away from my work. Walking is out of the question. I could potentially bike to work - but my work doesn't have showers, nor are there any places nearby enough to shower and then ride to work (without needing to shower again). This of course assumes I won't die of heatstroke (but let's say I'm fit enough to avoid that).
You could say "well, you need to live closer to your work" - this would be great - if there were any homes nearby my work, which there really isn't. It's inside an industrial park area, that surrounds a municipal airport - not much in the way of houses; maybe some apartments (in very seedy areas, mind you - this area used to be a truckstop not too many years ago, and there are plenty of holdovers from that time).
Then comes the question of how to transport all of my crap from my house to this new (fictional) home, without having my own vehicle (and, since we've all stopped using them - well, not sure what you do then).
I suppose telecommuting might be an option - maybe in such a scenario as "no car for you...or you...or you" employers would go for that more? Not all jobs of course could do that...
I guess what I'm getting at is that here in the United States, for the most part outside of some very singular municipal areas - most people simply cannot easily do without a vehicle of some sort, whether for personal transportation, or to transport others.
Whatever ultimately happens, we're all probably going to be painfully forced into it. We won't have a choice, it likely won't be gradual. Imagery from Brin's Earth comes to mind. In the end, we all very well might have to "leave everything parked" and simply walk away.
I don't think it's going to be pretty.