This is why I think at launch these will have non-drivers at the drivers seat smiling and ready to take over if the AI refuses. These drivers will have to drive less and less, and will eventually be remote operators. How they will get any economy in that I don't know - I'm cynically thinking they will be doing telemarketing while idling behind the wheel.
I won't. Uber knows exactly where you want to start and end, time of day, the route to take, and the historical performance of that route (eg speeds, accident rates, variability). Consequently even if the driverless cars are only good for 1% of routes, they would be able to use them. Soon 1% becomes 2% etc.
I definitely see a place for share pool cars that deliver themselves to you when you need them and return autonomously when you are done, but maybe not Uber?
If the cars need a human 50% of the time, and you move the operators to a call center, you can get away with fewer drivers (probably quite a bit more than half the number because of queueing theory). You also need to pay drivers less if they can work from home (they won’t lose working hours driving empty cars) You will also, likely, use less fuel, especially if you make your cars smaller.