Gambling addiction is a personal choice. If a family member has fallen into gambling addiction, we shouldn't follow their path because we could already see the consequences of it. If the whole family would fall into a gambling addiction, it could ruin not just relationships but also the way of living. The head of the family especially the parents must do everything to keep the children away from gambling addiction as early as possible.
You can't say that someone shouldn't follow them as if they will not really follow them.
If there's an influence inside the family, they will really be influenced no matter what advise you tell to them.
They're a family and they should be teaching each other what must they do, whether there is good or bad habits of gambling.
One of the major role of the family members mostly with the parents is to guide their children because they have the most experience if their children see the same situation that's why and also it is good to have their guidance regarding with it if there's nothing I guess it is the problem with the parents too what are the cons of playing gambling, because upon a child developing with the environment they see those things as normal which is reality is no.