“Pupils have been saying why do boys have to where ties and girls don’t, and girls have different uniform to boys,” he said. “So we decided to have the same uniform for everybody from Year 7.”Another issue was that we have a small but increasing number of transgender students and therefore having the same uniform is important for them.”There had also been complaints from the wider community about the length of school skirts, so this was another factor in the decision to ban them altogether. Some parents have however backed the headteacherCredit: Mr Smith said: “We know the current uniform is not necessarily worn as respectfully as it should be. “There were problems with decency and a number of issues raised by people in the community about how students were wearing uniform.” Priory School, LewesCredit: Brighton Argus/Solent News & Photo Agency Want the best of The Telegraph direct to your email and WhatsApp? Sign up to our free twice-daily Front Page newsletter and new audio briefings. The new regime has divided opinion among parents and students, with some agreeing with it, while others have voiced their opposition. One mother said: “My daughter and her friends are appalled by this. The school is creating a hostile environment for girls.”Another parent added: “My daughter said she has got a gender and it’s female, so being gender neutral when she has got a gender is a big deal for her, as she proud to be a girl. I feel girls should be allowed to wear skirts if they want to.” The new uniform only applies for Year 7s but students in Year 8 to Year 11 are welcome to adopt the new uniform.Meanwhile other parents said they supported the move. “I’m not in favour of uniform at all, but if you’re going to have a uniform I think it is great it’s gender neutral,” a mother said. It is not the first time that a school has introduced a “gender neutral” uniform.Earlier this year a Highgate School, a private school in north London, drew up plans to introduce gender-neutral uniforms in response to a growing number of pupils questioning their gender identity.And last year Brighton College, an independent boarding school, scrapped its uniform code in order to accommodate boys who identify as girls outside school and vice versa, breaking with hundreds of years of tradition. A secondary school has banned girls from wearing skirts to accommodate the growing number of transgender pupils, and to deal with complaints over the “decency” of short skirts.Priory School in Lewes, east Sussex has changed its uniform policy so that all new Year 7 students must wear trousers.Tony Smith, the school’s headmaster, said he bought in the change because pupils had been questioning why the uniform ascribed certain garments to boys and others to girls.