If they are loved ones by all means do correct them. If they bought their helmets from X-mart: Let them sue X-mart for not having someone size them properly. If they bought them from a LBS: The LBS should have properly fitted the helmet before purchase. Assuming that the LBS did what it was supposed to do the ball is now in the hands of the consumer. One more thing every QUALITY helmet that I've ever seen / sold has fitting instructions in the box so there is no excuse for their stupidity.