A female student alleged the school’s uniform policy was discriminatory against females
The school said the allegations were “offensive and baseless”
The tribunal found there wasn’t enough evidence to conclude the student was being treated unfairly because she was female
I don’t think they would be allowed to.
I’m thinking they mean in protest, e.g. https://www.theguardian.com/education/2017/jun/22/teenage-boys-wear-skirts-to-school-protest-no-shorts-uniform-policy