Cass’s NHS review found that an entire field of medicine aimed at enabling children to change gender had been “built on shaky foundations”.

Yeah because the whole "foundation" is based on: "This group of people pinky-swears they are a different gender because they say so and if you don't believe them they will harm themselves. Let's make an exception this time, ignore that whole pesky sciency 'anecdotal evidence is unreliable' thing, and pretend that it's all indisputable fact and form medical standards and government policy around it."