as far as I'm concerned and I know it's not entirely feasible, but it should be all cars on the road are autopilot or none are. and until then if someone is driving in autopilot there should be a big ass flashing indicator light that I can see to warn me that extra caution needs to be taken around that car
The Mercedes-Benz Drive Pilot system has special warning lights when operating in autonomous mode. It is generally considered to be technically superior to Tesla's system in most respects.