Case in point, make self driving cars cheap enough (under USD 20k new for a decent electric car with self driving) and I'll gladly support a complete ban on humans driving on public roads if that means the self driving cars can coordinate and drive better.

If you're making such a major change to the infrastructure, replace the roads with train tracks, and the cars with electric trains. It'll be cheaper and safer.

Cars that can only be driven by computers in controlled conditions defeat most of the point of having cars (i.e., mobility for people unable to use public transport).

The point of cars is to provide mobility for the disabled?I would guess we would have a lot less cars around if that were the case, at least in the city (no idea how it is in the US, I heard you can’t even walk there in some places so )

Given how wasteful they are, that's the only good justification for cars. But per the social model of disability (https://www.scope.org.uk/social-model-of-disability):

> The model says that people are disabled by barriers in society, not by their impairment or difference. Barriers can be physical, like buildings not having accessible toilets. Or they can be caused by people's attitudes to difference, like assuming disabled people can't do certain things.

in areas without usable public transport, everyone has this "disability". Individual action can't make public transport magically appear: only policy changes can do that. (Or anarchically setting up your own public transport, I suppose, but that'll probably get you arrested in America.)

First we would need self driving cars to exist I am afraid.

Why even allow people to go to places on their own (whether car or EV or public transport) without the written consent of the state?

be careful on that slope, you might slip and get hurt!