When you have upwards of a thousand teenagers and around 70 adults who have the job of socializing, educating and disciplining you need a good degree of compliance otherwise things break down. The compliance begins at the school gates with the kids wearing the the uniform(including hair style)that the school decides. From day one the parents are clear about the requirements and if they are unhappy they can go to another school. Once the cult of the individual starts to manifest itself the boundaries get blurred and chaos gradually develops. I taught for over 35 years and that is what I have observed. I am sick of of periodic stories of whining parents determined to force their will on that of their local school. If they don't like the uniform they can f off as far as I am concerned.