My only concern would be that 9th graders do some shit with them that they find hilarious. I can totally see a 10 year old shoving one up his nose, try how many they can flush down the toilet until it clogs or soak it with red ink and leave it somewhere for a teacher to find.
Uh, you can do all of that with toilet paper. And tampons are useful for bloody noses, which teenage boys get sometimes. This is a weird distraction from actual issues and anyone who cares about this is probably a nut.