You seem to live in a permanent state of incredulity, Glorianny, largely based on a determination to find fault with my posts
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Of course I don’t imagine that there are no suicidal children, or that teachers don’t come across them. I can’t tell from your post what you mean by ‘have to deal with them’, but as I’ve said, I don’t think that beyond ensuring the child’s immediate safety it is the role of a teacher to get involved, and I also (separately) think that where trans issues are concerned they could easily do more harm than good, as could anyone who is unqualified and inexperienced - I am not singling out teachers, as you seem determined to suggest.
Personally, In that role I would try to stamp on any form of bullying, would call a child what they preferred, within reason - as you say, that is a triviality - and can’t think of many areas where their sex should really matter to how they are taught.
Whether the school should have a ‘gender neutral’ policy for things like showers and toilets is more contentious, but that is for the SMT and Governors to decide, surely? I suppose I would go along with whatever was decided, and if the policy and my role in enforcing it went too far beyond what my conscience would allow I would change schools.