Earlier quoted context omitted.
We absolutely can and do mitigate these risks when getting into vehicles driven by strangers: professional drivers typically have higher standards for driving history, and people can physically observe whether a friend/etc is drunk/distracted/etc. But besides that, the people who are in the socioeconomic demographic to buy an expensive self driving car overlap with the demographic that have lower driving risk. For th…
That suggests the comparative bar should be "professional driver," which is perhaps somewhat higher than "average driver" (1.5x? 2x?) but not 10x higher.
For a personal standard, it is reasonable that an individual purchaser may use their own risk profile as that standard... as many of the risks involved are not random but can be controlled through choice or are inherently personal. For example, about half of all traffic deaths are due to drowsy or drunk driving.
Accident risk for any given driver is highly distributed. For someone making a marginal choice to purchase a car, the choice they are faced with is choosing between the safety profile of a self-driving car and their own personal risk profile.