Seriously though, I don't see truly autonomous vehicles unless we acheive general artificial intelligence. I don't see that happening in my lifetime or my children's, but obviously I am not an optimist.
I don't know that driving skill will correlate with desire to drive or own a car. I think getting average Americans to give up their private vehicles and rely solely on public transportation or autonomous vehicles is a SV pipe dream.
The area where that is the case will expand enormously once a chauffeur driven limousine is cheaper than standing-room-only mass transit.
There's no way I'd drive up to San Francisco and deal with parking when I can be driven up there and dropped off for the same money. Even twice the same money would be a good deal.
There really is no way buses win.
There are some realities I think get overlooked. For example, I have a family of six, plus a dog that can't be left alone. How do I go about getting where I need to go in a fast and convenient way? Let's say I can't afford to live in the dense city center, and like most people, I live in the suburbs. Barring some huge shift in politics, infrastructure, and major advancement in AI, what is my motivation to give up my minivan?
Uber already is pretty fast. I just used it in upstate New York north of Albany and there was hardly any wait. Any wait that exists will go down once robotic vehicles becomes dominant.
And pricing will also be important to make that happen. People who want less than 5 minutes wait can pay more, but that will be pretty reasonable priced. It's cheaper to pay for a vehicle to wait for 5 minutes or even 20 than it ever could be to make it wait for 3 hours or 12 hours.
And that IS essentially what we do when we have a vehicle on constant standby. We are paying for the fixed costs of having it wait around all the time. There's a daily cost to tie up that capital. It's 1/30 of your monthly payment. And an hourly cost.
In any case, individuals will be able to choose the option that suits them. And go back and forth. Some days you may value immediate pickup and you could rental a vehicle by the day. Other days you may not care and want to save money. Or you use your vehicle to care around tons of stuff and it's better for you to own. It's all good.
But that use case will be solved too. Automated vehicles will come in all sizes. Families aren't the only groups that like to travel together.
If there is a market for such vehicles, somebody will offer it.