The same or similar pictures are also used for
VB. They could have 101 pictures about what is legal or illegal and some would say that's not enough guidance. Honestly, if you can't officiate this, or worry about what the parents think, you should give it up.
And, concussion headbands have never (well, except perhaps in some mistaken non-official interp) been "headbands." This rule should have no affect (at least on officials -- it seems to have more to do with state associations)