People regret tattoos they got as a young person. I can't fathom the regret they'd feel later in life about cutting their nuts or tits off for no reason. Even moreso if someone manipulated/coerced you into doing it at a young age.
Side thought that's perplexed me...
What ever happened to accepting yourself for who you are? Like the whole accepting yourself as gay or whatever. All this gender stuff seems to go completely against that. Does the part between your legs define who you are and if you alter it you become a completely different person? I'd think you are who you are regardless of that.