I would love to enroll in a ballroom dance class, but I just don't think I have the natural skills and the grace to start with. Maybe you should consider other types of dance instead of ballet - jazz, flamenco, or even belly dance! A lot of women do belly dance as a form of exercise.
I would love to learn how to dance flamenco and tango. I agree that you might want to pick something other than ballet, maybe salsa or cumbia - something with a latin flavor. Ballet is a dance that should be started at a very young age.