DS told me this when he came in from school (no real names used):
12 year old DS was lining up outside maths class and the teacher told the class to go in. One of the boys (Josh) walked into the class in an ‘affected’ manner. Teacher asked Josh why he’s walking like that and Josh replies that he’s changed gender and his name’s not Josh, it’s Sarah. Teacher says, “Go and sit down and stop being ridiculous”. Josh replies, “actually you have to call me Sarah because it’s the law” (paraphrasing from DS). For the rest of the lesson, the teacher referred to Josh as Sarah (with an eye-roll according to DS). When the bell went at the end of the lesson, Josh informed the teacher that he was no longer a girl and he had changed his name back to Josh.
DS knows my feelings on self-id, which I think is why he told me, but it just sums up the whole ludicrousness of the situation. I think this boy was just having a laugh, but potentially this kind of shit could really happen, with kids just deciding they’re going to identify as the opposite sex for a couple of hours. My concern is that staff will be too worried to challenge them.