I think you are still imagining a future where people "own" personal transport.
Which I am not. For all sorts of reasons, but mainly because for well over 99% of recorded history it has been the exception rather than the rule.
If 100% of the population owned cars, there might be a case to be made. But notice how - ever since the idea of the automobile was developed, no nation on earth has been able to abandon public transport. Not even the US.
A fleet of driverless cars - mainly taxis - could well be the saviour of the High Street, if all the whinges about parking are honest.
I can recall a very similar debate about 15 years ago when "apps" were starting to be a thing. Apparently nobody wanted them. They would never take off. People would always feel more comfortable doing things over the phone, or in person.
The of course about 40 years ago, nobody wanted a computer at home.
Before that, this "television" thing was never going to catch on.
Before that, "wireless" ?
How about those lunatics building locomotives when we had a perfectly good canal network.
Canals ? What's wrong with roads, you idiots.