vooke, I don't think Audrey is intersex. She calls herself trans. And I think you may possibly be confusing non-binary with trans, as I used to, myself, till recently. Non-binary, I have only recently discovered, are less likely to identify as the gender opposite to their biological sex; they are the guys who talk of many genders (which personally, I understand, but cannot support their legal recognition, knowing the widely varied thing they refer to.) Trans itself (Bio girl feeling like a boy and vice versa) is a medical condition and I believe there may be some studies that link it to biology: they have brains that resemble the gender opposite to their biology (something like that, I won't pretend to have read the studies myself, but this I was told by a full medic, so I don't think it's baloney.) This may be due to the prenatal environment (pregnancy) or something else; they don't know.