Today, it is harder to keep your kid in school if they have a stuffy nose, than it is too justify why you are keeping your kid out of school. Winters are tough: our school nurse will send my kid home if he crosses some line that isn't very clear, even if he is fine otherwise.

I just don't see it as realistic that my kid be 100% healthy to go to school, especially during snotty nose season. But then again I went to school no matter what when I was a kid, it was definitely an extreme in the opposite direction. There must a balance between protecting the school and letting the kid get a good education that isn't interrupted too much (consistency and stability is also important).