There are lots of leading indicators that a car (or human) is bad at driving, so you don’t actually have to wait for an accident to know if you are on the right

There are lots of leading indicators that a car (or human) is bad at driving, so you don’t actually have to wait for an accident to know if you are on the right path. E.g. keeping track of near misses / interventions can get you data points much more quickly.