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.