I didn't say penalize. I just said it needs to be addressed. I personally don't see all the convoluted scenarios happening that have been put forth in this thread.

If they are not players then send them off, if they are players then 'T' them up.

Can Fashion Police Be Successful, And Get Promoted To Fashion FBI Special Agent ???
 

Today I worked a Catholic middle school "junior varsity" (fifth, and sixth, graders) quadruple-header, and we didn't have a single "Fashion Police" issue. Not one. Every single player on all eight teams was 100% legally equipped, undershirts, headbands, and sweatbands. It's been like that all season. These are ten, and eleven, year olds, coached by volunteer coaches, mostly parent/coaches.

Last night I watched a public high school girls varsity game. Two top notch girls varsity programs, with two of our better, more experienced officials. One of the players was wearing a red jersey, with a black, short sleeve, undershirt, underneath the red, sleeveless, jersey, and she played the entire game like that. This is February, for Pete's sake.

The difference: The assigner of the Catholic middle school league told us at the beginning of the season, that if he ever walked into a gym, while we were officiating for him, and if there was an illegal undershirt, sweatband, or headband, that we would not get paid ($30.00) for that game.

Headbands and wristbands must be white, black, beige, or a single solid color similar to the torso of the jersey. When wearing headbands and/or wristbands, all players must wear the same color. Pretty easy to understand. If ten year olds can understand them, then everyone should be able to understand them. These "Fashion Police" rules are enforceable, you just have to want to enforce them.