NTA - as someone who wants to persue an artistic carreer, I’ve heard from many friends of mine that big breasts CAN be a problem for dancing, and I’ve had friends who went through the surgery and feel so much better nowadays. They say that it was the best solution to their problems, and some of them were 14/15 when they did the procedure.

So, if your daughter, who is old enough to understand what’s she’s getting herself into (more than your husband and mother, who apparently don’t understand that it is not to “look prettier” or anything, but because it helps with balancing your body while dancing), and if she wants to go through with it, I don’t see the big deal!