Inspection of helmets before games

[Bluefoot]

For high school & middle school FP games, I was taught by my board to inspect each teams batting helmets prior to the game, and look for the NOSCAE label with proper facemask attached. I do this at every game, and some teams tell me that I'm the only umpire who asks to check them. Some have never heard of it.

Is every umpire supposed to do this? If so, do you do it?