In parlance we generally prefer that to be referred to as a “questioning phase” as saying it’s a “trans phase” tends to be in active use by some of the sort of anti-trans rhetoric peddlers like Abagail Shrier and Jordan Peterson. In the activism scene it’s a little “nails on a chalkboard” ish when you come across it .

Also generally speaking gender care for minors in the US and Canada is a four professionional team. A psychologist, a pediatrician, a social worker and an endocrinologist. In the UK it has extra personnel through their kind of arcane structure of gender clincs… So it’s already pretty well covered.