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.
In a family, it's always better it be the man of the house who engages in gambling, knowing fully well that he is the bread winner of the family, and that the responsibility of his family rests on his shoulders, so, he will always know how to go about his gambling in a manner it does affect his family's well being, both in finance and other aspects..
A woman gambling in a family is not good, as it makes the woman appear irresponsible, and even in the society we live today, married women gambling always appears immoral.
Whether both parents gamble shouldn`t be a problem rather the question that should preoccupy our minds is if they are addictive gamblers or reckless gamblers. The response to this question will form the basis of our judgment. I gamble and also my wife enjoys playing Bingo but that hasn`t affected our relationship nor have we been unable to pay our bills. We need to understand that gambling is not bad but it is the gambler which makes it a problem or not.
There are stories of a parent gambling and yet still causing problems in the family. What is bad is reckless gambling and when one of the spouses is addicted it is a problem. So, it is possible to have only one partner gambling and yet make the family uncomfortable and yet you can have both partners gambling and yet the family is at peace.
I have seen a situation where both parents were full time gamblers and its not like its a new thing happening these days. Men and women and now involved in gambling do such and if as a child you find out that your parents are gamblers what you should do firstly is to find out which of them might be an addicted hambler or who is gambling responsible. In that case you would know if you could be okay with them gambling or not. Since you have experience in gambling you should also advice them on some crazy things to npt try as a gambler.