As the recent kerfuffle around Tesla's Autopilot has shown, we still have some way to go before everyone is on board with the idea of people being driven by their cars on public roads. Until we get to a point where fully autonomous (level 4) cars are capable of taking us from A to B with no human intervention beyond telling it the destination, self-driving cars are going to need a (relatively) alert human occupant in the driver's seat, ready to take control if necessary.
http://arstechnica.com/cars/2016/07/germany-wants-black-boxes-in-self-driving-cars/