All this discussion of self-driving cars is a colossal geek-wank. Because IT WILL NEVER HAPPEN.
We're talking two different transportation paradigms here. There's public transit, which can certainly be made faster, more efficient, and more flexible. And then there's private transportation, i.e., the personal automobile -- the entire POINT of which is that you, the driver, control the vehicle and make the decisions. People will never willingly surrender control of their cars to automation -- because then they won't be cars anymore.
BTW, on my recent poll thread
, a majority said they enjoy driving for its own sake. As do I.