I am skeptical of the idea of a genetic influence. There are many identical twin boys born--identical genetics--and only one of the pair becomes a crossdresser. Same problem in studies of gay men and their twins--although (if I recall the discussion) there is a slight tendency for gay men to have gay twin brothers. And there is a second problem with the theory. Gay men seldom have children--there is a slim chance the gene would be passed on.
If it is genetic then shouldn't crossdressers have more crossdressing children?
Likewise the "hormone wash theory" has the same problem. When twins are born--fraternal or identical--then they must have been exposed to the same womb and same mother's hormones. Yet you seldom find two crossdressers resulting from such births. Or two gay boys. Remember the developing baby does not share his blood supply with the mother. The blood cannot cross over to the baby. Crossover of blood would be fatal if the mother and baby had different blood types. Rh factor disease results from a partial mixing of Rh negative mother and Rh positive bably.
Baffled--still waiting for a really sound theory.
