Is that a derail, I sense?
The point is not the school, the point is how trans-identity - particularly amongst young women specifically and young people generally - functions : the personal identity dilemmas is permits to be articulated and (partially/temporarily) resolved; the identity positions it allows to be performed; the competing demands of society, culture, politics it allows to be (temporarily/partially) balanced.
There is a wealth of research and investigation of how anorexia functioned with regard to gender; there is a relative silence on the issue of trans identity. Putting the two into close proximity permits a reflection on the similarities and differences between the two.
For what it's worth, I think there are some strong similarities between how anorexic identity functioned/was deployed by young women of my generation and how trans identity functions in contemporary youth (particularly female youth) culture.