Without sounding too much like a religious zealot, growing up I had friends who would sell their blood or plasma for money. I have always donated my blood because I feel and this is my personal belief, not one I'm trying to spread, but some things are sacred to me, why sell what I was blessed to be given.
Additionally, the sex trade, especially among trans-women was an issue that kept me for accepting who I truly was, I wasn't like them yet. The phrase the brought my situation into clarity was when the psychologist determining if I had GIS/GID said "There's a difference between Gender and Sexuality". With that everything fell into place.
Just expressing myself and not trying to push anything onto anyone.