@Chattylion
What happens to kids in the UK presenting to their GPs with gender identity issues, is that they are referred to a gender identity clinic. Those clinics have a two year waiting list. Then they receive a full assessment by a team including the following:
Clinical psychologists
Counselling psychologists
Systemic and family psychotherapists
Child and adolescent psychotherapists
Social workers
Child and adolescent psychiatrists
Paediatric endocrinologists (medical doctors for children and young people who are experts in the hormonal and physical changes associated with growing up)
Clinical nurse specialists (nurses with further training in endocrinology or a related area)
Under a certain age, I think it's about 10 years, 80% receive no medical treatment, they go away having had some nice chats about how they feel and understanding their feelings towards their bodies better than they did.
Some do have treatment, no one under 16 is given cross sex hormonal treatment and no one under 18 is given surgery.
Jason's treatment, as an adult, took about 5 years.