Golf is a game with far too many antiquated and austere rules that need changing.
The one the bothers me the most and should be so simple to change is the way professional golf handles players’ scorecards after rounds. If a player has signed his or her scorecard and a mistake has been identified on it, but after it’s been signed, that player is penalized.
The most famous incident of all time in this case took place at the 1968 Masters when Roberto De Vicenzo signed for a 4 on the par-4 17th hole at Augusta National, but actually had a birdie 3.

be remembered for his scorecard error that cost him a shot at a playoff in the 1968 Masters. AP
It’s customary in tournament golf that players keep each other’s scorecards.