Two facts:

1. The average occupancy of a car in my North American city is 1.2 people per car. This does not vary much by city.
2. Autonomous vehicles will almost certainly be worse for traffic than human driven cars. They will circle empty with no passengers and drive to pick up passengers empty (dead heading) even with a fully rideshare system. If there is widespread private ownership of autonomous vehicles (and you bet your butt that car companies will campaign for this aggressively to keep sales up), the dead heading problems only multiply. If you don’t believe me, look up any recent literature on the topic: by most accounts it will be worse, not better. Dead heading is only the tip of the iceberg of problems there.

I don’t know, if I were surprised by a panther I think I would also be shocked and say holy shit, haha. How should I react to not get hirt?