If it can be proven that robot cars always obey every traffic law, then wouldn't human drivers ALWAYS be at fault in an accident between robot and human drivers (except for very rare weather or mechanical failure factors)?
Taking this a step farther, will police and insurance companies punish drivers in the future for wanting to drive their own cars?
I think that is a given. But I also think that before that happens, there will be digital traffic control, whereby autopiloted cars will be acting, not only on visual information, but on wireless communication. Thus, the idea of stopping at a red light (or stop sign) when there is no cross traffic to deconflict will become an anachronism. Active wireless communication/cooperation between vehicles will have to replace gestures drivers exchange now.The transition period will, shall we say, be interesting . . .