I went to (an otherwise okay, but still a catholic) school in Connecticut and I learned that we won the Vietnam War.

My dad was the right age, but neither he, nor his close family members or friends (nor my mother’s) were drafted. My friends’ parents were younger, so I didn’t personally know any Vietnam vets well enough for them to talk to me about it, and I didn’t think to doubt it. I didn’t find out until college (it was rightfully embarrassing, I was a libertarian arguing for the USA’s right to “bring democracy” to Iraq).