Since it is a small home game, I would ask the other players that if, on occasion, you could fold but keep your cards until the end of the hand so that you can ask your dad afterwards if you made the right move. Then make sure you keep your cards visible and your hands away from them while the hands is played out. Once the hand is over, show them to your dad and ask his advice. You don't need to do this on every hand. I mean, you don't really need to ask if folding an 8-5 offsuit is the right move. For the reasons already mentioned, you cannot ever share them with another player while a hand is active, even if that other player has already folded. And don't ever try to do it at a casino, or you will be bounced out on your rear end.