They will be optional at first but eventually we will not have a choice. I know this sound ludicrous but it will happen.
Guess my 1968 Ford and I will stay on the back roads then. Only way I would consider a self driving car is if I was old and frail to the point on not being capable of driving, then I will comply as I would have no other better options.
Agenda 21: It will be used to curtail and control individual movement: It will be the electro-mechanical equivalent of “your papers”.
If they decide you have been a naughty individualist, then your self driver will not be driving anywhere.