Now we actually have working software and hardware, and real people are experiencing self driving. I live in the bay area, but not a month goes by that I don't see a self driving vehicle at some point. And that's not counting the Teslas that are autopiloting their way down the highway next to me that I don't even know about.
Maybe my negative feelings are excessive; I'm just really, really tired of having people jump in with the whole "but self-driving cars will change everything!!!" routine every time people try to have a serious conversation about public transit investment.
There are already autonomous Ubers taking people around Philadelphia and now San Francisco.
What limits do you think will exist?