The loss of the joy and satisfaction of driving a proper drivers car with a firm feeling manual transmission will be hard to explain to future generations for sure.

But the bigger fear is the loss of autonomy in movement that having everyone become beholden to a botnet for transportation will bring.

"Drive me to the anti government protest. I want to make my voice heard."

"I'm sorry Dave, I'm afraid I can't do that."

Even in the far future of AV highways, I expect that tracks will exist where you can drive your car for leisure.

You're old enough that isn't a worry for you. If your grandkids have cars as a hobby they might have to use a track rather than public roads.