@DisgruntledSnowman
Are uniforms usually so formal in Scotland? They all look like private school uniforms, as opposed to the regular state school kit of trousers and sweatshirt here in SE England.
They can be. Lots have a "Tartan or black skirt" type uniform option.
So day 1 of P1 all have immaculate uniforms. By the time they go up the school it gets far more like the 2 wee boys with the school jumper, shirt and tie on.
When my nieces started school my SIL loved the wee kilts they had. Then by P2 they'd been ditched for plain navy skirts that weren't a fucker to iron.
Generally there's a black/navy/grey trousers/jumper option because in Scotland schools can't actually enforce uniform the same way they can in England.