Call centers barely handle simple requests. Why do I want a foreign driver handling my life and a $70k chunk of metal that I insure?
Such an intervention can (and will) simply kill passengers.
Insurance helps a bit, but does not recover from death.
that and their potential ability to do radio sensing to provide high resolution realtime maps of their environment.
It's not rational, of course: just knowing how much things regularily goes wrong in a low-level net makes me feel that way.