"We won't allow any technology that takes away jobs. In a country where you have unemployment, you can't have a technology that ends up taking people's jobs" I guess we should spin up the weaving looms when the next recession hits?
Once self-driving cars hit, the switch will be immediate and massive. I would predict 10% to 90% penetration in probably less than 12 months--the limitation will simply be building the cars fast enough. That's a lot of people suddenly with no income.
Protecting people against that disruption for 50 years? Probably a bad idea. Protecting people for 5 years? Maybe a good idea.
An efficient market is a ruthless market. And people are its victims.