And honestly, in terms of children in schools, this school's position / Brighton schools' position is not fair on the trans / gender questioning children either, nor compliant with Cass (as social transition is not a neutral act). They're harming ALL children, I see no redeeming features of what they're doing at all.
With Dr Upton it seems clear to me having seen his testimony that he wanted to bully Peggie and get her sacked. In school, it's likely any gender confused male child IS confused and vulnerable too. Forcing girls to undress in front of him is NOT going to make him friends and result in party invitations, quite the opposite. The adults giving him special treatment will NOT endear him to his peers or their parents.
These adults - teachers and governors - are failing both girls, boys and gender questioning children by pushing their ideology - they're using children to service an ideology which is emotional abuse as defined in KCSIE. It would be far fairer on the gender questioning child to enable a third space - this would also give them a way back if they decided to desist / detransition later - how could they possibly change their mind with these adults in charge? They're a pawn in the political activism too.
The current situation enables social transition which, if it's without medical oversight, is against Cass recommendations for gender questioning children. Even the most pro-affirmation psychiatrist I'd imagine would still understand that social transitioning in this way - knowing there are girls and families who object to their daughters being used as unconsenting validation tools without any concern for their wellbeing- will only cause harm to the gender questioning child's social life and experience.
And it's so easy to have an alternative arrangement that protects all children. A third space for changing and perhaps using staff toilets. They should be making it clear girls are NOT being forced to get undressed in front of boys nor share toilets and that they'll make third spaces possible until the EHRC guidance comes out. It's actually relatively simple to protect themselves and yet they won't. Pure swivel eyed zealotry is the only possible answer, that or utter stupidity.