I believe one theory could be that the need to cross dress stems from the lack of female affection and admiration when we where Young and maybe even as adults for those who started late in life.
I cross dressed because it made me feel attractive, sexy, and complete.
My cross dressing filled a void and made me feel like I was normal yet the act wasn't or is it?
I believe it is possible that under these conditions, where you long to be found attractive by the very thing you admire more than life, only to be found lacking in there eyes, sends you deep inside your self where your only way to be loved or to feel there affection is to become the woman you so desire to be with.
I believe it is possible that our desires are turned inward and cross dressing is a natural state created by a troubled hart and mind, the human mind is capable of any thing even gender redirection.
I believe it is possible that this is the result of a normal brain at work trying to cope with an unfortunate situation.
Why do i believe this is possible? Because I went through countless rejections and cruel words from girls I really liked and would have done any thing for.
I had no one and it was hell.
just a thought