The maturity-rating for "un-bleeped" camera-footage of adults whacking small dimpled white balls around over a grassy fairway.
It is downright appalling how so many seemingly-sensible and dignified grownups in neat elegant business-attire behave --- or rather, MISbehave --- the moment you put a golf club in their hands... it's no wonder that "raw" TV-coverage of said games often carries a PGA-13 rating!