Humans should be the baseline precisely because they aren't very good. Imagine a whole fleet of hundreds of self driving car that are worst than the average human driver (who are already really bad) all making the exact same worst than human mistakes.
I don't want imagination, I want real numbers! Several groups must have them, but so far nobody is talking, except those who have reason to conceal the truth. (Average drivers includes those driving drunk, which isn't a useful compare for someone who doesn't do that)
It is not hard to imagine that self driving cars are normally better except for some situation. If we can know those situations we can also talk about hybrid where we don't allow humans to drive where they are bad, and don't allow cars to drive where they are bad. However someone with real numbers needs to talk.
Every single accident involving a self driving car in California must be reported to the DMV. In addition, miles driven and disengagements are reported. All that information is available today online (e.g. accidents [1]).
> nobody is talking
No one talks data about the biggest player Waymo because "human driver causes an accident" is not news.
In September, there were three crashes involving a Waymo car. On September 3rd and again on the 11th, a driver hit a parked Waymo car[1]. On September 30th, a car rear-ended a Waymo car stopped at a red light[1].
