Looks like the father knows the consequences of his son's action and he just wants to guide him no matter what the scenario is, we don't appreciate this kind of love from our parents until they are no longer here with us and by that time we realize that no one has ever been truthful to us except them. He should always listen to his father and learn to be contented in his life since they all have the means to survive. If he accepted it, I'm sure it won't be the last time the son does it and until the whole family is addicted to it.