To be honest, getting back on topic, I don't think that it will come about that fully automated driving will eliminate driving by people. There are way, way too many conditions that cars are driven in for human drivers to be eliminated or even limited. Current cars, and I realize this is very early, for example, have problems identifying potholes. To the vision system in the car, it cannot differentiate from a pothole and a round oil stain on the pavement. You also cannot as of yet, put judgement into a computer program. A case would be something like a small animal crossing the path of the car. Car would naturally stop. Now add a driver behind you following real close. Computer driving car now needs to decide if it runs small animal over, and occupants of both cars are safe, or stops suddenly for the small animal, and potentially causes an accident. That will take a lot of fancy programming, and I don't think we are there yet, and may not get there in 20 years, even. Not to mention the insurance industry getting involved. It will probably take them 40 years to work out liability in the case of computer controlled cars.