A big problem is that many educators and school boards treat education as indoctrination. i.e. "Teach people what to think"

The real goal of education is to teach people how to think. Logic, rhetoric, analysis, scientific method, how to identify logical fallacies, understanding statistics, falsifiable theories, analyzing history not only through secondary sources, but actively seeking out primary sources to corroborate secondary sources, so on and so forth.

A useful education for a healthy well-functioning society is about inquiry, not regurgitation.