Also, selling self driving cars to people is the end game. Getting them on the road as taxis is a stepping point to get public trust.
I think you have this backwards. I admit I'm only one data point. BTW, I have never used Uber/Lyft, and have only been in a taxi once in my life AFAIK (maybe I was when I was too young to remember).
I will gladly give up my car if/when I can get cheap driverless Uber.. i.e. point to point transportation NOW (or very very close to it).
If the cost over a year is less than that of owning a car, great.