Cars already have black boxes and have for about a decade.
What will be an issue as we make the transition is that although driverless cars will almost certainly be safer in the aggregate, they’ll still make mistakes. And most importantly, the mistakes they make will be different from the ones humans make.
Many (most?) autonomous accidents will leave humans saying things like “How could it be so dumb to screw *that *up??!? A person would never do that.” Meanwhile not giving the machine credit for the dozens of accidents it didn’t have in circumstances where humans would have.
I predict that will be a significant obstacle to adoption until we get enough history that the total outcome is inescapable.
Look in the student parking lot of your local high school how many of the cars are older hand-me-downs? A car is probably the second most expensive thing people buy in their lives (after a house). The cost savings from a driverless-only car are minimal (no steering column & limited dashboard), meaning there won’t be a material reduction in the cost of a new car.
This
I’d rather having flying “cars” I hate traffic. 