It seems to me the best way to build a case for autonomous driving would be for Uber, Lyft, etc to give incentives to drivers who have safety features like auto

It seems to me the best way to build a case for autonomous driving would be for Uber, Lyft, etc to give incentives to drivers who have safety features like automatic emergency braking, then quietly build up a database of accident rate statistics. These services could be a great way to collect this sort of data and see which approaches improve safety. I am skeptical of unmanned taxis for reasons having nothing to do with autonomous driving. What do you do if a passenger gets sick, passes out, starts acting violently, has a heart attack, all things regular taxis encounter. Basically, you need a person to monitor the vehicle, passenger and contents even if the car is driving much of the time. Plus also, pleasant conversation if desired.