I share your sentiment. On the other hand, the upper bound of the number of car reduction is maybe 50% of the cars that would be there otherwise (assuming we can replace most single car trips by 2-3 people trips). It's a huge improvement, but the US really needs to work on public transport. Heck, why is Caltrain not more efficient?
Eventually you'll be able to get a shared "bus" in five minutes to take you to most common destinations and at night you will be able to get a less-shared "taxi" that will cost more since there aren't people to share your trip with you.
We'll build the brave new tech world equivalent of a decent transportation system.
when someone can buy a self-driving vehicle and hook it up to uber's network, buying a car could be a capital investment that gets you recurring revenue: you just hook your car up to uber's api, and take it to an automatic service station when the on-board diagnostics report that it needs work to be done.
Caltrain runs on diesel, is incredibly slow (much slower than driving), frequently breaks down, and doesn't travel across the bay. It was probably OK for the 70s.
