Lee - well, I can only speak for my own child! He finds it uncomfortable. And having to get changed after school is something he resents - not because he doesn't want to wear his own clothes but because it's a hassle.
I dunno - I just think it's a lot of fuss when it's primary, even if not at secondary level. As long as the kids are wearing sensible, cleanish, warm clothes to school then it should not matter what the colours or styles are. And no one should be judging these kids on that.
Ds looks far smarted in his own clothes than in the uniform he's been struggling to 'live' in all day - it's impractical, easily dirtied and shows up every speck. And he is one of those bright, beautiful, and kind kids who nonetheless behaves like a puppy 
Daisies, many thanks for explaining a bit. I suppose I was wondering if more of an allowance is made for getting the children ready for school, than it is over here - I don't know how to explain what I mean but if education is considered such a massively important thing there, maybe the parents devote an awful lot more time to it than we do. We tend to shove their things in the machine to be washed, rush around with our own lives and business and school isn't something we build our lives around.
I'm not sure how it would work if we did, iyswim.