[adrianN]

The problem with systems like autopilot is that the human still needs to pay attention. The driver needs to take over in a matter of seconds when the system encounters a situation in can't handle. Autopilot makes things simpler and more monotonous while still requiring perfect attention from the human.

[Retric]

In theory that's a huge problem. In practice we have 1.X billion miles of data and it does not seem to be such a huge deal. Either the systems are already fairly good, or people mostly pay attention.

Granted, I am approaching this from the perspective of a more relaxing driving experience not necessarily from a pure safety standpoint. People spend 20,000+ hours driving in a lifetime making that less stressful is a huge benefit even if they are still stuck in their cars and can't get work done.