It depends on the actual perspective.
There is nothing wrong with gambling money in this case, but indeed for some people something like this will definitely cause controversy, especially for those related to spirituality and belief.
In some conditions, in my area, this kind of thing still happens a lot because parents believe that money from gambling, which is actually not allowed, according to them, has no benefits, which actually creates a condition where we get bad luck in the end.
It may happen to the father though in this case he may need it but he has a degree of discipline for gambling money because he may not gamble either.
Regardless of right or wrong, everyone has their own views on this matter and indeed we also cannot justify or blame the father's determination to refuse the money because he has his own commitments.