A mom brought her twin 7 tr old boys to watch the bjj program at my school. I asked if they had any exp and the mom was quick to say that they were both black belts. Their instructor, I personally know, is a fraud. He claims to teach tkd up to black belt then switches to okinowa te. The problem is that he has never trained in tkd. He moved to the area was hired by a retiring gm. He learned taeguek 1-8, poorly, and has been teaching "tkd" ever since. The gm broke ties when he saw them in action at a local tourney. No cert or ties to any tkd but awards a bb in tkd within 18 mo. The mom signed up for bjj. She came early and saw a tkd sparring class. The boys were curious because they never sparred.they were told tkd rules excludes 7 yr olds from contact. Should I say anything and, if so, what? Not first time this situation, but kids happy in bjj. Maybe just let alone and they will forget instructor what's his name.