>if I see kids playing basketball in a driveway, I’m going to slow down, incase the ball bounces into the street and a kid takes off after it without looking T

>if I see kids playing basketball in a driveway, I’m going to slow down, incase the ball bounces into the street and a kid takes off after it without looking That's because you're a thoughtful, conscientious driver. A very large fraction of drivers are not, so society winds up with lots of dead kids. Humans are terrible drivers: some of them are OK, but too many are very bad, leading to catastrophic results, and because of this human drivers need to be eliminated. Alternatively, the society could become far stricter about which humans are allowed to drive, but that isn't feasible when the society has intentionally made it so that it's effectively impossible to survive without owning and driving a car.