A self-driving taxi would be wonderful. No accidents, no insurance too buy, no need for the highway patrol. It would be cheaper to own.
The problem is the state owning them. Cramming people together in buses will never be accepted.
The self driving anything are no where near accident free.
A friend who works in a biomedical lab specifically studying crashes and the impact on human beings claims you never want to ride in a self driving vehicle.
it will be the only option for many
it will be
shut up
and get on the bus