Like a lot of things, I think this question has more to do with where you live. If one is urban, I suppose the autonomous transportation has more merit. Out in the sticks, such as where I live, I do not trust computers and satellites to safely navigate me over rocky, every changing backcountry dirt roads or mountain highways. But perhaps in the cities and burbs, the concept may have some merit.
But I think looking at autonomous vehicles that are occupied by one person, or maybe a couple, in a vacuum is not the answer. Transportation, particularly urban and suburban transportation, but also rural, should be looked at completely anew, and fresh ideas considered. The highway and freeway system, particularly in the west, created a society that drives 2 blocks to do anything, and that lives often 45 minutes to an hour and a half away from their work place. That exists and has to be dealt with. I guess with public transportation, buses, trains, maybe autonomous cars, maybe autonomous cars that are public and shared like the bikes my family was just riding in San Diego that you rent for a bit. Or some other things like that I can't think about yet.