To avoid scoring issues. You should only be concerned with properly recording and verifying your score and the scorecard you are the marker on. I’ve seen issues where the guy driving the cart attempts to keep score for the foursome and ends up transcribing scores incorrectly. Just verify your score each hole and the person’s score you are keeping. I write the score on the official card at the time the score is relayed to me, not after 6 hours. That way if there is a concern it can be addressed right then and recorded, not trying to remember if Billy Bob 3 or 4 putted at the end of the round because someone wrote something down wrong.