A question if people don't mind; is it due to the nature of a changing society that it has become necessary for youth organisations to seek guidance on gender transition/reassignment ? Male and female Army/Navy/Air cadets have existed harmoniously for ages. A male cadet wearing a female uniform or vice versa isn't controversial, but getting guidance what has been portrayed as a radical organisation such as Mermaids would seem risky.
I speak as an "oldie" who was in the Scouts prior to joining the Army at age 16. The Scouts of my youth taught self reliance, survival skills, basic bushcraft etc. Gender issues weren't thought of at all, I guess because in the 60s and early 70s they were less of an issue.
NEO