Earlier quoted context omitted.
It'd also practically stop economic growth of areas outside large cities and slow down economic growth of the city itself. Many businesses would be ruined (and thus people working on them). Many people would loose their jobs. This is a very backwards approach. Why don't we destroy our cities that have replaced the beautiful nature that used to be there instead of them?
For what it's worth, I'm trying to find a place that is free of cars because, well, they ruin life if you enjoy walking and cycling. So far, places that come to mind are central Ghent and Rothenburg ob der Tauber (sadly the latter allows cars but they're still very few in number). If I were there I would expect to work remote, or start my own gig. I'd shop locally. There are very few places in the world where you can…
There is still inner city parking too (the underground garages) so Ghent is not really free of cars yet.
If you want to live without cars the best place would be a nature reservation or silence zone, there are a few of those in Europe and the few houses that are there are priced quite high as a result but I think they would come closest to your vision.