We already live in a world of edge cases. Because of the existing design of needing to have a car to get around, we have incidents like this:

https://nypost.com/2023/08/11/los-angeles-elderly-driver-kills-woman-after-plowing-car-into-dealership/

Which only exist because of the necessity to drive in the first place. This is a edge case where a human driver is arguably more dangerous to society than yhe autonomous driver, and only happened because some old people require a car to get around from their homes due to either lack of ability or unwillingness to move, and poor public transportation.