It's not anyone's business whether you gamble or not, unless you have a family and you have to feed your kids and care about them in many other ways, like buying books for them, smartphones and stuff. First provide them with everything they need and only then you can gamble because it is likely that you will lose money and losing to gambling is not a good excuse for not buying for your kids what they need.
In the Real sense, the responsibility of any responsible man is to ensure the proper taking care of the family before anything else, the wife, the kids and any other family matters has to be considered first before gambling or the money to sort those bills out shouldn't be used for gambling but after doing that, the man can gamble for all he likes since the family will not be in need of anything he can't provide.
A gambler is prepared for the best and the worst so I think before going to gamble once is prepared to face whatever outcome he gets.