Serious work on the proper care of transpeople began at least as early as the 70s, 50 years ago. Significant amounts of surgery were done even in the 50s. You think this is all new. It is not. What is new is a greater acceptance by the mental health community that being trans is not a psychological pathology but an ingrained condition in the same way that being gay is. People cannot be converted into being trans and they cannot be converted away from being trans. It is a fixed part of our biology. That is what is new. This is finally acknowledged in the most recent version of the DSM–V. Finally enough evidence has accumulated to lead the experts to understand this. As to proper treatment, the methodology has been known for 70 years at least and there are cases of people being treated successfully for dysphoria going back to the turn of the 20th century. it is hardly new.