Ive encountered a few people who were transitioning (on the Harry Benjamin protocol) who were between 30-60+. They weren't kids who had identity issues.
It depends on what you deem physiological or indeed psychological and where the line is drawn, if one exists. Psychiatric drugs often have nasty side effects, check out Risperidone, lithium, duloxetine, etc.
(, Tue 29 Jun 2021, 12:14, Reply)