Mostly. Sometimes people will do what's good for them, externalities be damned. I like leaded gasoline as an example. It wasn't an oopsie. We know it was bad fr

Mostly. Sometimes people will do what's good for them, externalities be damned. I like leaded gasoline as an example. It wasn't an oopsie. We know it was bad from the day it was introduced and lead producers fought to keep it known as safe.