Obviously I meant to point out that Decomposing believes no boy would ever realistically choose skirts.
Chatted with DH about this - and I was proud to see even he gets it - no matter what length skirts girls wear, some men are complete arseholes and will sexually harass school girls no matter how regulation-long or rule-breaking-short their skirts.
And as he pointed out, this prudish demand about needing to cover up legs and needing to prevent the least glimpse of knickers is also ludicrous, almost religious in its fervour. Especially given that we have religions galore that demand women and girls cover up.
Strange as it seems now but when I was a little girl, we actually had frilly knickers to wear under skirts and dresses for that exact purpose. Not that I liked them, but still, it was an acknowledgement that girls are active children, too, and may move such that their knickers might be seen now and then. Which was not seen as an issue, especially not a reason to ban the garment altogether.
And it's ridiculous because it projects adult ideas onto children's bodies, sexualising clothing choices when children are merely expressing themselves in complete innocence (it is queer theory that posits there is no such thing as childhood innocence alongside the claim that children can consent to sex).
Anyway, what DH shared with me is the entertaining wee story of his pal who in the 70s at school claimed the right for himself to wear a skirt as part of his school uniform and made it all the way into the local papers with that.
A total of one is all you need to invalidate the claim that "no boy would ever" but I remember a story from last summer, too, reading in the papers about boys wearing skirts during the hot summer against the wishes of their school because it was more comfortable and finding much support for their stance among parents. I cannot recall the outcome of that particular uniform story, but there are and always have been boys who absolutely would wear a skirt.
So, as Bertrand keeps repeating so very patiently: three options for all. Perfectly viable.