Why the bias? should gambling be only for Men?
In many countries, I don't want to mention religion and tradition, men are above and they are treated as superior to women because that's what tradition and what they follow in their religion we should respect that, women are the homemakers they are the educator of children so they expect women to have a good behavior this has been the case in many countries since time immemorial, here in our country women can gamble but we do not expect them to be heavy gamblers like men.
That is very right - men are considered superior than woman. I am not sure if it happens in all culture or it is the specific religion you have mentioned. But male supremisy is a global issue. Women faces so many issues, gambling is a kind of different hobby not much liked and admired by many religions.