Is a player's caddie considered an outside influence in the game?

The assertion that a player's caddie is not considered an outside influence in the game is correct because a caddie is an integral part of the player's team, specifically engaged to assist the player with strategy, club selection, and other in-game decisions. The relationship between a player and their caddie is one of collaboration, where the caddie supports and enhances the player's performance. They are not seen as an external factor but rather as a crucial part of the player's success on the course.

Other options might suggest that caddies could be outside influences, possibly depending on the context or tournament rules, but this would misinterpret the fundamental role of a caddie in the game of golf. By understanding that caddies are permitted and expected to advise their players, it becomes clear that they do not count as an outside influence in the context of the rules of golf.