Yes, you are right, if we care about our family then that will automatically raise our concern for other people who even if they don't have any relationship with us. I think this is something that every human being has, because basically we can't live forever without other people. And when something like this happens, believe something good will come to us for our concern for others, it is a law of reciprocity or a law of nature that will always happen.
Maybe one day, even if it's not us, but our family members who are having difficulties, somehow there will be someone else to help.
Concern for others will lead us to goodness because what we do to others will come back to us later. That way if some people or relatives have problems with gambling, we will know and be able to act on what we have to do, especially if it is our immediate family. And even though it's not our immediate family but other people, we will also help him because we know that helping people, especially those who need help, is kindness. So people with a gambling addiction often get angry and can calm their anger and have the opportunity to talk about it and cure it with our help.
Sometimes when your relative is into gambling, you will not even know but outsiders will be gossiping about it and it is only someone that loves you that will bring the information to you. Especially as anyone can easily gambling with their phones it will be difficult for anyone to know who is gambling or not.
But advices making you to understand your family will go along way to curb addiction only if the person cares about their family.