Only people younger than 12 or with stuff immune systems get colds anymore.
I don't even take a daily dose of Vitamin C anymore and I haven't gotten sick in a year now.
Most schools are not very sanitary. For example, when you go down the steps, the rails or sticky and a bit untidy and the desks could have a bit of dirt on them.
Kids generally touch their faces more often then adults and sneeze without covering their nose. So I agree and added on :3