Behold the liberating potential of Google's self-driving car for Steve Mahan, Google self-driving car user #0000000001. Steve is legally blind.
What does this have to do with sharing? Imagine fleets of self-driving cars routed to minimize transit time and maximize butts in seats and safety. There would likely be a lot less traffic, time wasted, fuel wasted, polution, and accidents. And the blind could "drive". All the technology needed to do this already exists.