> If somebody has managed to situate themselves in an ideal location for them specifically to live without a car, then they almost certainly only managed to do that by benefitting from the positive externalities created by car owners
I can, and frequently do, walk to my nearest supermarket. But I know for a fact that if cars disappeared for a day then it would be unable to open its doors. These small areas of hyper-convenience don’t exist without cars.
I live 9 miles away from my office though, so that would be a lot more difficult.
> In pretty much any pre-car city you can get everything you need on a daily basis within a 10 minute walk from home
I’m sure if you wanted to undo 80+ years of economic development, we’d be able to recreate that society… that economic development is of course one of the positive externalities you’re choosing to ignore. So if this is your agenda, I’d suggest you try to figure out how catastrophically devastating that would be for the economy first.