IMO the benchmark to pass will be to show it has better safety than the average sober, non-speeding, non-phone-using, seatbelt-wearing driver.
IDK how that could even feasibly be shown but that's when people will actually start going all-in on it. Otherwise I will simply meet those criteria myself for free.
Bordering on zero human drivers fit that profile. The competition to AVs isn’t a mythical race of flawless humans. It’s the drunk, speeding, distracted idiots who currently operate motor vehicles (e.g., us).