"school uniforms result in better/worse behavior by students"
There is little or no evidence in research that, overall, school uniforms did result in better behavior.
The point remains that a mandatory uniform policy at public schools is at odds with freedom of expression and with the prior rights of families to decide what education their children should get.
School uniforms express a disrespect for such rights, which does not help in regard to development of personality, morality, ethics and integrity.
"School uniforms make students better behaved, i.e. more disciplined, more focused on learning and less prone to engage in discrimination, bullying, violence and crime" - anonymous
"Among other people, Dr Brunsma, who has closely examined and studied school uniforms and who has conducted research into the issue, confirms that there is little or no evidence in research to support the suggestion that uniforms made people behave better." - anonymous
"Throughout history, soldiers have inflicted immeasurable misery while dressed in uniform. The behavior of Japanese troops towards POWs and civilians during WWII shows what can happen when people are dressed in uniform and are drilled in parades and instilled with patriotism, pride and prejudice." - anonymous
"Un untidy uniform looks less disciplined than untidy casual clothes. While school uniforms may require a more disciplined attitude, such an attitude needs to be imposed and enforced. In other words, the focus of teaching could just as well (or, even better) be on learning, instead of on clothing. Why have parades and uniform inspections, if all that time and effort could instead be given a more academic focus? The suggestion that school uniforms automatically resulted in a more academic emphasis is nonsense - instead, it makes more sense to argue that school uniforms require more discipline to be imposed and enforced, which comes at the cost of a more academic focus." - anonymous
"While school uniforms may give students a more similar appearance, there is little or no evidence that this made them behave any better in practice. Indeed, imposed discipline that results from having no choice is rather empty and lacks depth." - anonymous