A lot of people rely on Uber and Lyft for supplemental or primary income, so this could be very disruptive if it continues to scale. Are we not worried about this in the medium-term?

Also I appreciate many of the random human interactions I've had with Uber/Lyft drivers. Of course not every ride was great, but many drivers had stories and experiences that no one I usually meet would have. For me, the safe but bland experience of a self-drivng car isn't worth losing the human touch, not to mention taking away income for human drivers.