This is what you said on p20
*I think perhaps you need to stop cross examining me about what I mean and establish some concepts of your own .
As far as a boy questioning why they are required to dress a certain way and what that has to do with the gender they identify as well, it's been happening for a long time. Many of us have seen boys choosing to wear skirts and wondering about. the difference gender makes. Of course if you question the whole concept then it is a bit difficult to understand why you would find anything wrong in a teacher wearing a skirt.
But once again perhaps you should stop asking people posting on GN to explain matters to you. Google it, then you can decide for yourself what is "dross" There are a number of highly rated organisations posting information on the subject.
However if you are truly interested in finding out more I recommend this piece of research which gives some details and explores the differences in the brain which may be involved*
www.ncbi.nlm.nih.gov/pmc/articles/PMC7415463/
Does that explain what 'being in the wrong gender' actually means? Or does it just insult me and tell me to find out for myself? You talk about dress as though it is intrinsically part of 'gender' when previously you have said that a skirt is just a skirt and nothing to do with trans issues at all. It is not an answer.
How often did you see boys wearing skirts when you were teaching? Was it really so commonplace that you can talk about 'many of us' doing so and collectively wondering about gender as a result? That's interesting if so, but it sounds anomalous to me.
As for developing concepts of my own, why (and how) would I do that? Who wants to hear my concepts about a cocktail of biology, genetics, sociology and whatever else is involved in this, when I don't know enough about any of them to 'establish concepts'?
As for my being 'pathetic', that is not at all in the spirit of Gransnet. You are just being deliberately insulting.
Telling me what I 'bothered' to do is also very rude - I am not a child who hasn't done her homework. You routinely insist that anyone asking you a simple question is 'demanding' answers, so why you think anyone should 'bother' to do your bidding is beyond me. I do have manners, however, and I did look at it.
There is a definition of gender which states that 'the term [gender] is harder to define, as it is to do with how someone identifies, how a person fits in with the social norms, activities and attributes that are commonly associated with men and women'. Which is interesting, but does not explain anything about the fact that 'gender' shifts across time and place. This is followed by genetic explanation of dysphoria, most of which I could only follow at a surface level. The fact that the author uses language such as sex being 'assigned at birth', and 'cisgender adults' makes me wonder as to the potential bias of the authors, although I have no way of knowing who they are, as this is far from my area of expertise, and I don't have time or inclination to check beyond the article itself.