Besides, these articles sometimes to have the full story, maybe the man is a religious man and gambling is something that might be frowned upon and was trying to stick to his principles....whatever it is, give it time, the son will explain himself and they will find a way to agree on how to receive the monetary gift.
In this case, reading the whole story, one thing is clearly understood, except for the father, the other members of the boy's family are interested in keeping the money won by the bet. But the boy's father is not agreeing to spend his gambling money for the benefit of the family for some religious reasons. If you look at the boy's older brother's post, they only told the netizens that the gambling money is with his family should be spent. Moreover, the boy's mother is willing to spend the gambling money with the family because the boy's family still owes two months of house rent. If the boy spends the gambling money for family purposes, then his family will have a great life in the future.
It's true that some African parents still have this achaic mentality towards making money through gamble.They believe that gambling is really sin,and to serve God,one must not be a partaker of it,therefore,him accepting the money might seem to him like a sin,but I see that as primitivity because we all know that the game of gambling is a thing of luck,and there is no spiritual ties to it.Its either you win or lose,but some African fathers who believe in Christianity might not see it that way.If I were the boy,I won't beg him to accept the money,I will use the money to get my own apartment,and live a good life there.Time will come when they will be in need of that money,and they will come asking me.