A century ago horses had Full Self Driving with the human having to be vigilant and in charge.

The horse could go crazy in scary situations endangering others but you could train that out and make a good war horse.

Basic stuff like following the road around a bend was something the horse could do but you could not tell it to autonomously go across town to pick someone up.

People were okay with horses and knew what to expect. Tesla need to rebrand autopilot to 'horse mode' and reset people's expectations of FSD.