>In fact, the timing of compulsory education being enacted into law coincides with men coming back from the world wars and the creation of child labor laws, denying children the right to work so their parents could have better jobs.

Compulsory education in the US started in 1852 in Massachusetts and ended in 1918 in Mississippi:

https://en.wikipedia.org/wiki/Compulsory_education#United_St...

The first modern compulsory education was enacted in Prussia in 1763.