(in my country, to get a bus driver license, you have to go through training that explain how to act in weird situation, how to identify dangers and which danger to prefer. You have a whole hour about always stopping at a safe place (parking, bus stop, red lignt, stop sign) before getting involved with anything that happen inside)

Maybe not common sense, but if you have a drivers license you should absolutely know it

In the US, in employment, there is no such thing as common sense. People come from diverse backgrounds. When you have a million employees, anything is possible as an untrained baseline. Everything has to be trained and accounted for.