Why not make these "AI" merely driver assists/fallbacks, rather than actually taking over from the driver? That way, we can leverage the advantages of both huma

Why not make these "AI" merely driver assists/fallbacks, rather than actually taking over from the driver? That way, we can leverage the advantages of both humans and computers; namely, that computers are vigilant and never lose focus, but people are flexible and can easily react to new situations. I'm thinking about stuff like Automatic Emergency Braking, lane-keeping (but only if you start drifting without signalling, or if there's another car in the way), driver inattention alerts (seat rumbles if you start to zone out), blind spot warnings as lights on the mirrors, impending stop ahead warnings, etc. Notably, rudimentary versions of many of these already exist in new cars today. Going forward, just improve them, with better sensors and data, until the day comes that full self driving is a real possibility.