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.
That is if they or the father will accept the money and the family will have a good life in the future. But his father still doesn't agree because of religious reasons and it seems we won't know whether the money is actually used by his family without his father enjoying the money or is there another story behind it all. This was a difficult decision for the son because his father refused the winnings. Everything has its advantages and disadvantages while the money does come from gambling. But if it's related to religion, maybe it's better for the son to comply with his father's wishes not to use his money for his family.