Homosexuality has genetic factors which can be seen in the correlation between same sex relationships and left handedness, as well as testosterone exposure in the womb - aka why homosexuals often have index fingers longer than their ring fingers - but with trans people of either gender (aside from Bruce Jenner), they're rarely regular looking individuals pre-bodymod. Is it genetic, social, psychological, cultural, a mix? Serious answers please, there's nowhere else to talk about this shit intelligently.