People who know us well often tend to hate these changes, I believe - because they like us to be as they have known us for a long time or even loved us. So if suddenly the voice looses its dark timbre and pitch or the face looks more feminine and looses some "character", its not something everyone likes. But I guess in the end its our body and we are the ones who can choose what to do, like a woman can decide if she wants to have a child or not, nowadays.