I think one of the things about the gay community that sets us apart from many other marginalized communities is history.
With the exception of a few LGBT children raised by LGBT parents, we are not raised by our elders, and in fact, a, say, gay teacher taking an interest in a gay student, even of a different gender, even out of a desire to let that child know they’re not alone, may be seen as sinister.
As such, our history is something each generation must seek out on their own, usually as adults. Perhaps, if they’re lucky, they may know older LGBT people who can help, or may find elders online, in web videos, but if they’re not, they might not learn much at all about our past.
And that’s not even touching on how many of our elders died before they could become our elders.