US desperately needs self-driving cars. Desperately. I don't think most people realize how much. Because they've never seen a city with good public transport where most people don't own or care about cars. But achieving good public transport in US is impossible for cultural reasons.

So there's no public transport so most expensive areas will fight to the death to keep population density low. Because more people means more cars means more traffic means whole place becomes terrible. End result: cost of living is too high, commutes too long. Not exactly the way I'd like to live.