A thing I think would really help us as a society is understanding The Flaw of Averages. They should teach this in school. Early and explicitly. Let me give an example:
"The average man is stronger than the average woman."
Seems reasonable on its face. gUEss wE bEttEr bAn trAns gIrls frOm spOrts!!! But there IS no average man or average woman. Those numbers are derived from real measurements of individuals. Many of which may be far from average. If we give each person a Strength Score for simplicity, from 1 to 20 (Cause DnD is great). Then say Male average is 11 and Female is 10. Probably 40%+ of individual females are stronger than "The Average Man".
Bottom Line: You can measure individuals to learn about the average of the group. But you can't use the average of the group to learn anything about any individual in it.