Another consideration that needs to be made before tossing out private transit because "public transit is better" is not all people are able bodied, able, or willing to use public transit.

If it is 2am and you need to get home as a woman, it would be a no brainer to get in an autonomous vehicle while going on public transit is a bad coin flip on being harassed at minimum.

If you are wheelchair bound and the elevator is broken, wheelchair ramp is broken, or someone is already using the wheelchair spot, you just have to wait for luck to change.

If you have sensory difficulties that make public transit uncomfortable, private transit is always the better option.

The list goes on for many reasons and people that having only public transit would harm. The idea we can get rid of or otherwise push out private transit marginalizes everyone who isn't prototypical nor should we hand-wave that they can just rely on runs-on-other-people's-time disabled specific transports to get them into city centers because private transport isn't allowed in.