This is the dress code at a school in the area we preached (Matasanos just outside San Isidro).
On the other hand ... the way they dress here (especially the girls) makes it understandable why they need a sign like this in the first place!
It's quite outrageous at times here..... and needless to say there are consequences as well to this attitude since we see a lot of "kids having kids" if you get the point.