i am thankful to turn autopilot on as soon as i reach a highway entry ramp. Even if i'm in no rush and fully capable, i want the assistance merging onto the highway. I don't want to constantly look over my shoulder for a window to get into the fast lane, I want one selected when it becomes available.

The hard parts are the whole point of autonomy.. the parts so hard that humans still fuck up and kill people. that's the ideal of autonomy imo and short of that its missing the point.