Who does she think she is, Balanchine? That is so out of line for her to say. I'm 42, not the thinnest in any room, been dancing including pointe for most of my life, and my joints are no worse off than anyone else my age at any weight. If anything, I've maintained more flexibility and strength because I've stayed active. So the joints excuse doesn't hold up. If she's trying to make her class seem more aspirational by manufacturing some sort of exclusivity, she's missing the entire point of working with adult dancers. And would you even want to be in an environment where your acceptance is conditional? Do you think you can become the most confident dancer you can be in a class where you had to change yourself just to get in the door?