Given that speed and alcohol are the top two causes of traffic deaths, mandatory SAE J3016 Level 4 self-driving would prevent a lot of deaths. But of course, it will make the price of a "safe" automobile many times the annual income of 99% of North American and EU drivers.
Even a FAANG HENRY who would buy a BMW i7 M70 won't be able to afford a "safe" automobile in a "safe" country.
A Waymoid is your future, first-worldians!
Self-driving is a bandaid for a problem that is made by cars. It doesn't address the hundreds of other issues caused by them. Also it adds to the incremental squeezing of the middle class out of existence.