The lad is probably misinformed, there's probably no such rule. Kids come home with all sorts of stories.
Malt is right about the obsession with uniforms and uniformity of thinking in this country
Finland has the best education system in the world judged by several criteria. Kids don't start school until they are seven, the brightest and the dullest are valued equally, there are no uniforms and emphasis is put on happiness rather than achievement. This is not some hippy ideal, it actually works. The teachers treat the kids as friends and vice versa.
In many countries, ours included, the cur