Originally Posted by
CitizenWorld
This is in the Lounge itself rather than an aircraft so there wouldn't be a flight crew involved. Regardless I would approach the parent and failing that, Lounge staff and failing that still asking for the manager.
Pedantism noted. My intent, as you obviously noted, was to suggest that the OP should have complained to the People In Charge of the lounge and/or the offending offspring. "Venting" or "ranting" in anonymous internet forums after the fact is pointless.