One thing I haven't heard much about is how humans and AI drivers will interact. If we all assume that AI cars are going to be very conservative and very competent drivers, will people take advantage of that? Will human drivers become even bigger assholes that cut off AI drivers at every possibility, knowing that an AI will not hit them? Why wait in a big line for an exit, when you know an AI car will always let you…
Without road-raging human drivers behind the wheel, is the vehicle occupant going to care that they got to nap a few minutes longer on the way to work? Or got to read a few more pages of their novel?
Edit to add: Also, I'm looking forward to autonomous police cars who bringing reliable traffic enforcement to all road users.