A recent study from the TransYouth Project found that transgender children as young as five years old respond to psychological gender-association tests, which evaluate how people view themselves within gender roles, as quickly and consistently as those who don't identify as trans.
"I always knew," said Jordan Geddes, a 26-year-old trans man in Columbia, Maryland. "But I grew up and had the whole world telling me I'm wrong. At that point [as a child in the 1990s], there was no visibility whatsoever about trans issues. My parents just assumed I'm a very butch lesbian.
this is what got me.....wow, i am not surprised at all