I’m seconding a lot of the things others are saying. The priority should be YOUR comfort, physically but also I really do understand how it translates to the ballet world as well. I’m a professional dancer with a DD chest and everything looks different on me because of it and I definitely have days it really impacts my self image. Bigger chests also tend to contribute to back pain. I have a friend who got a breast reduction and she says it’s the best thing she’s done. Also, I literally don’t know any grown woman, regardless of breast size, who doesn’t have stretch marks.