Mrrzy, that kind of surgery is often barred by the ethics code of state and provincial medical associations except in very rare cases, and the onus is very much on the patient (or, more correctly, the patient's parent or guardian) to prove that it is in the patient's best interest.

In Canada, the medical professions clearly prefer to avoid irreversible treatment for gender dysphoria in any person who has yet to reach the age of majority. Huge malpractice liability is thus ducked.