And equally schools could concentrate on teaching instead of worrying about what kids are wearing.
The reported 'behaviour' issues have improved massively at my daughters school in the past 12 months.
Last year, they relaxed the uniform policy in terms of strictness - they started to allow trainers, as long as they were plain black, they started to allow jewellery and multiple piercings as long as it wasn't massive hoops and was taken off for PE, they allowed makeup and hair dye and basically started allowing kids to express their individuality.
The number of reported behaviour incidents has reduced because they no longer include children whose trousers are a bit short (yes, one child was actually sanctioned for growing!) or who happen to have forgotten to take a ring off.
In addition, teachers are spending less time policing and punishing children for infringements of a patently ridiculous policy which means they have been able to focus on more serious behaviour issues and the children generally feel more able to express themselves, and feel less need to push back against restrictions because the rules that are in place make more sense.
As a result general behaviour has also improved and there are fewer serious behaviour incidents.
We shouldn't be teaching our children to just roll over for unfair and illogical rules or go elsewhere. We should be teaching them how to think critically and how to make an argument for change, and if necessary how to protest.
I got several ridiculous rules changed when I was at school, not by breaking them, but by engaging with teachers and school leaders about why they were wrong, making a coherent argument and presenting the evidence.
The teachers gave me the opportunity to make my arguments, and listened when I presented my evidence - including one particularly memorable 'business case' about why there was enough room on the school car park for year 12's to bring their cars, if only they'd put proper lined bays in, which saw me out there on my free period with a meter wheel having researched the standard size for a parking bay.
Where the hell would we be today if Emeline Pankhurst, Rosa Parks, MLK and Ghandi had just followed the rules?