@gwynnion I would speculate that the urge to divide these two groups into two categories is part of our society's tendency to insist that human minds are monolithic rational entities, when we're actually a jumble of distributed cognition. Some folks had conscious awareness of being trans much sooner. Some didn't have the necessary concepts or developed complex layers of repression.
@gwynnion I thought my "egg cracked" when I was 40, but it sometimes feels like a lot of me knew but a dominant part of my mind vetoed it. Anyway, the more I think about it I have a lot of empathy for everyone whenever they come out, knowing and not acting on it is intensely painful.