in the mid 90's the younger adult generation was replaced by kids who didn't grow up exposed to leaded gasoline: https://en.wikipedia.org/wiki/Lead%E2%80%93crim

in the mid 90's the younger adult generation was replaced by kids who didn't grow up exposed to leaded gasoline: https://en.wikipedia.org/wiki/Lead%E2%80%93crime_hypothesis https://en.wikipedia.org/wiki/Lead%E2%80%93crime_hypothesis