Follow the Money
Had a discussion just this morning, gist of which was: who, exactly, is pushing for autonomous cars?
More specifically, who expects to profit?
Somehow it keeps coming up: insurance companies, not so much insuring autonomous owners, but positively soaking the drivers of non autonomous cars for at least a couple of decades under the guise of "increased risk."
Aside from accident avoidance, and some utility on long highway trips, I'm not convinced there's a market for these unless drivers are forced to buy them.
Aftermarket chip reprogramming already is an automotive thing, and there will be a brisk market for disabling these things.