The way traditional automakers are doing it is the proper way to do it - cautiously and responsibly. Incrementally implementing driver assistive technology instead of shipping an autopilot which doesn't deliver and crashes the car into obstacles. Traditional automakers are used to screw ups that lead to recalls and lawsuits so they're quite cautious.

The Hyundai Ionic assistive tech slows down the car to a stop if you take your hands off the wheel.