Not going to work because based on logic
Automated vehicle designers are aiming for a solution which will reduce driving costs, reduce journey times, improve safety, and all those other good and logical things. They assume that people with cars share their objectives.
However as we know a fair proportion of today's drivers have other priorities and their cars fulfil completely different objectives such as sustaining their self-image, defining their place in the pecking order, or merely having fun driving like a knob. Everyone knows the cocky bloke who looks down on automatic transmission because "as an above-average driver I require full control of the car" and somehow can't see him not immediately disabling a complete automatic driving system.
So I think the legislators have got it back to front - automatic driving will ultimately only work if all vehicles are automatic rather than leaving a few randomly unpredictable ones so they should really focus on not offering human opportunity to drive.