[wooger]

Why?

At worst you can just pay extra to have a smaller or more luxurious private self driving taxi vs. something more like a bus, shared with others. The appeal of owning and having to maintain something like this is nil. You're not in control, there's no ownership of the driving experience, and if appropriately compliant with the law, they should all drive the same speed.

[xnx]

Guaranteed availability and being able to leave stuff in the vehicle would be the main draws. Even privately owned, they'll still have subscription fees.