[iudqnolq]

Making all cars more expensive would reduce car ownership. Adding extra expensive cars while keeping constant (or even reducing*) the price of cars at the bottom won't.

*if everyone suddenly wants to buy the amazing new self-serving cars then that could effect the used car market

[apendleton]

Again, I feel like there are so many what-ifs that it's hard to say for certain. If it were to turn out that AVs were dramatically less likely to kill people than human-driven cars (seems not to be the case with current technology, but humans suck at driving, so it's not inconceivable), maybe there would be regulatory/legislative disincentives that would make human car ownership harder or more expensive.

[iudqnolq]

Sure, if the government implements regulation to dissuade non-self-driving car ownership then car ownership will decrease. But that's entirely tangential. If the government decides taking cars away from poor people to reduce accidents is worthwhile they could do that tomorrow.