I am childless, also, but not because of anything I learned in school.

Wow! Imagine a history class that has lively discussion and debate. Never happened in any of my classes, except for government. Most of the teachers droned on, and they would go off-topic, because they were bored of themselves, too. ;-P

I didn't give a rat's ass about history until I visited some historic places as an adult, where I could see and touch things.