But the children look the same. This potential psychological barrier has been eliminated, the idea that "he is different, not like me."

Or, on the contrary, it has been exacerbated. Everyone looks the same, which means that people with quirks will stand out even more against this background. And again, it will be "He is not like us, we don't want to interact with him." In addition, uniforms have the annoying habit of wearing out, getting stained, and tearing. So, as a result, the wealthy will often wear new and good-looking uniforms, while the poor will wear patched and stained ones.