The most I would say to your dad is, "Some guys are complaining you can't keep an accurate score in competition, and next time they want someone to count your score for you."
See where it goes from there.
The retirees I play with, keep score like the guys above were saying about retirees. It makes it more fun.
My parents always told me you never lie, and never cheat. I had some neighbors who told their kids to cheat, that cheating was a part of the game and that everyone cheats, just some are better at it. Sad part about it is they're pretty successful.
We were playing in a charity Tournement. The prize for the longest drive was $450 plane ticket voucher. Our group was the last to play the hole with the longest drive and hit the longest and best drive. Somehow when the prizes were given out, they won.