it all depends on each person mindset, even though you are the young generation in your family while your whole family gambles but you dont want to gamble to avoid bad effects, of course whatever happens you won't want to know about gambling and I say this also about a strong stance not to try gambling even if your family is a gambler.
and if you are starting to think about stopping gambling in the younger generation, maybe you can give advice to other younger brothers and sisters not to try gambling by telling them about the bad effects of gambling too often and dont force yourself to tell the older generation every once in a while to stop betting because its like forcing other people enjoyment rights which you dont deserve and you have to understand that because someone who is old usually does not have other fun activities so they choose to gamble maybe just for their fun activities so dont occasionally tell them to stop gambling but try advise your younger generation not to engage in even the smallest amount of gambling and dont appear pushy.
I think you have a point, it's just about each one's thinking, even if they get a win and tell it to the young people in the family, if he himself is not interested in gambling then he will not be carried away by gamblings, because he has a strong stance because he knows gambling will damage his future if they have become addicted, and I have also heard the saying "Even if you win it's the beginning of defeat Even if you are rich it's the beginning of poverty".
But the saying "the fruit does not fall far from the tree" may also be true. But whatever, it's up to you to decide which things are good for the future, which are bad things that will cause difficulties in the future. The elderly should be able to set a good example for young people, not by inviting them to gamble if it is to tell stories it doesn't matter but it should also be considered that telling stories can attract young people to join gambling because they dont have a strong stance, except for those who have a strong stance, maybe they won't be tempted by gambling at all.