Yeah, never a good idea for both parents to engage in gambling, as no doubt, this could have a very bad negative impact on the children going while they are growing up to become teenagers, and teenagers into adults, the children could pick that up from their parents and that could turn the entire family into a den of chaos and confusion.
If the two parents are gamblers, then you should expect nothing from the child than being a chronic and addicted gambler, the son of a lion will surely roar like a lion, he will take much of gambling from his parents, but i wonder how they could both manage the home in bringing the children and having resource for their daily needs when they both gambles, can they even afford to make earnings? i doubt, we should leave a good example for our children to take and not care less about what our actions might put in them to become what they may never thought or imagine in life.
Cooperation is key in this type of family, where both spouses are gamblers. Not all will end up becoming compulsive, if they work alongside each other and caution one another, they can be responsible gamblers. I know that it's quite a tough one, if one of them gets addicted. And it'll be almost impossible for the kids not to find out about their parent's engagement into gambling. Especially when they discuss about their wins and losses. To be honest, the family can be run without having some financial challenges, if the parents set aside some funds for gambling, alone. However, isn't it better for both to be gamblers than one person, that hides it from the family and runs dry the finances of the home. No one is the right person to quit, instead both should end it and focus on training their kids. Because someday the kids will become gamblers, one way or another. Even if the parents are responsible players, the kids may not.