We have some interesting experiments (Cruise, Waymo) wandering around (a subset of) our streets, but they simply can't drive nearly as well as 98% of humans.
They achieve some measure of "safety" by failing safe e.g. stopping and putting hazard flashers on when confused. But they're not an effective or useful "service" for us, in the current state. Have you ever seen one try to deal with a contested left turn, or a 4 way stop with pedestrians constantly crossing?