I agree with you completely. I don't know how they have gotten away with this either. Apparently the problem is not only district wide, but state wide as well. Additionally, it doesn't seem to bug many of the other parents...only me.
But then, I've been telling my kids to avoid the school restrooms entirely for years...
Some schools have taken the doors off the stalls because of 'things that go on behind a locked stall door'!!!