In order to dance professionally, you have to start at a young age. No matter what, your muscle structure and your bones have to be groomed from a very young age. Nobody wakes up at 17 and decides to become a ballet dancer.
I used to be a Catholic. I left because I object to conversion by concussion. If you don't agree with what they teach, you get clobbered over the head until you do. All that does is change the shape of the head.