Are scorecards necessary in tournament play regardless of the format?

Scorecards serve a crucial function in tournament play as they track the scores of players throughout the round. In stroke play formats, every player's score is recorded to determine the overall rankings and performance in the event; hence, scorecards are absolutely essential. However, in match play, the scoring is based on the number of holes won rather than cumulative strokes. Players in a match play format typically keep track of their individual standing by simply noting the number of holes they have won or lost against their opponent rather than needing a detailed scorecard. Consequently, while scorecards are vital for stroke play, they are not necessary for match play, making the assertion that they are not needed in that format valid and accurate.