this issue is more like the people running the school...namely the principle and the teachers.

It shows they lack the care on teaching the child with proper manners. They thought their concentration should be only on academic studies which is totally wrong when running a kindergarden. It also shows they are short staffed. Most kindergardens hire maids to help look after the kids which is what they need to do.

However, I wouldn't waste time advising the principal what to do because he/she already have the wrong idea on running a kindergarden.

I would sent my kid to another school immediately. Cleanliness is really very important issue. You cannot imagine how many times my kids got sick from kindergarden. The principal AND the teacher both lack concern of being a good teacher on life.

Forget about the school fees and all. It's secondary to your child's health. You wouldn't want your child to grow up next time who doesn't care about her cleanliness? It's easier to teach a kid about those good values when they are young.