I agree with you. So maybe the system could expect the driver to actually drive. I've never driven a Tesla, but I've seen a similar thing in a Citroën I rented

I agree with you. So maybe the system could expect the driver to actually drive. I've never driven a Tesla, but I've seen a similar thing in a Citroën I rented once. On the highway, with cruise control, the car could practically drive itself. It would follow the lane, slow down if cars in front got too close, accelerate back to the set speed when they went away, etc. Once or twice I completely lifted the hands off the wheel, and pretty quickly it would start complaining. So with this system, the driver actually had to be engaged.