I think there are as many reasons for gender variant people as there are excuses for not exploring this world. I personally believe you have input into what you "need" here. I don't think many of us are fated to be one thing or the other. Some sides argue that many are denying who and what they really are. Others say that surgery can't make you happy.
My personal feeling is that many people think that their path is the only real or true one. Sort of like religion. And like the analogy to religion, they are wrong. I think for the majority, there are many places on the gender spectrum where they could be happy. It's up to each individual to find the best fit for them. I don't think short of magic that there is a perfect fit, just the best fit.
Many of our needs change over time and I see that in the number of 40 and 50 years olds who finally start going out into the world. Are they transexuals that have been denying their nature? Well, some of them are....but some of them are not. As complex as the issue is I think seeing it as diverse as the light spectrum with all different hues and frequencies is apt. What's your frequency?
