To me this is two issues, not one:

1. the issue of gender in sports - what are the guidelines, what's "fair", does fair even exist? A technical and scientific question, maybe possible to solve.

2. media hassle, "humane" treatment of athletes, what should they put up with, what's unacceptable? A moral question. To my mind her age shouldn't be relevant, because "kids" shouldn't be in the cut-throat world that elite sports has become.

typing fast, in a hurry..