I'm genuinely interested.
It seems so obviously unpleasant and unfair - adults sitting in short sleeves while kids are sitting there sweating and not allowed to make themselves more comfortable - that I'm always astonished when I hear about schools that have that kind of rule. I wonder what sort of adults would think it's a good idea to treat children so unkindly and with such a lack of respect and consideration. But there must be some educational or behaviour philosophy to it, mustn't there? I presume they don't just do it because they're all mad, so they must have some kind of thought-out reason as to why this is a good idea. Can anyone shed any light?