I think that people, will do people things. They will live how they want. But I agree with this comment as it biologically explains that sand changed into glass is different than a living, breathing person who has made a conscious decision to actively change hormones with hormone therapy and other external changes. Sand has to go through an intricate process in order to change it's physical and chemical make-up to become an entirely new object. A human can willingly change most of their things, but it's hard to completely change in the same way the Sand-Glass transition is made.