Where on earth do you live, Abbey that seems to be awash with sexualised schoolgirls
The place is not awash with them, but there are some, and it needs to be recognised. There are some girls who will display very sexualised behaviour, will break rules, will be uncouth regardless. Call it rebellion, attention seeking, sex on a stick, whatever, these pupils are discruptive and really need dealing with, not pandering to by changing uniforms to suit.
Its not so much a case of being comfortable either. oft times the way they wear their clothes must be very uncomfortable. One thing is certain, it is uncomfortable for the rest of us - teachers and other pupils who have to witness it/ deal with it.
More than that you need to recognise that most schools these days are co educational and nearly all go up to the leaving age of 18.
One thing that has come up in the school where I work is a petition to the head about the younger girls ( year 9 and 10 - 14/15 year olds) and their behaviour/ the way they wear their uniform. The older boys ( who are becoming young men!) find them embarassing and feel do not want to be in class with these girls because they fear , not their own behaviour but the potential for accusations.
We have a duty to keep all our children safe, not just the ones who are playing the minority/feminism / me too cards.
My school has fairly biddable pupils, nice boys and girls generally , but we still have a few who want to hitch skirts to their backsides, spread eagle their legs in class ( because , well the boys can do it cant they? ) Well no actually most of the boys dont do it, and besides they have a different anatomy to the girls ).
I do wish we would stop all this gender is in the mind stuff and its what you want ot identify as..... its so easily used by those who just want to cause disruption . There are physical differences. Lets be honest about that.