No paperwork, from Stonewall, Mermaids or anyone else claims they can.
So you’ve inspected every single resource provided by the numerous trans organisations that have embedded themselves into schools have you? Their relationship with the truth is rather shaken so I wouldn’t be so sure.
Oddly, many schools are very secretive about the materials they buy in from these organisations and won’t share them with the parents. Rather odd for a school that normally wants to involve parents in everything. Our school used to offer maths lessons and all sorts of demonstrations but on this topic they refuse to let parents even see what they are teaching the kids. A bit of a red flag.
In your inspection you must have seen some very ‘interesting’ materials. Did you come across the infamous ‘dice game’ where kids roll a dice with body parts including genitals listed and then have to come up with ‘activities’ you can do with the various body parts, like anus and mouth? That was a doozy.