Unfortunately, they are not and or they don't care about it, they are on the side where they are thinking that they are still
in control of what they are doing.
Sad true that when someone got addicted, they are not the only one who's getting the problem, but also
those who are close with them, especially the family that cares about them or the family who are relying
with them. All are also affected and if the person would not accept it, the problem will be keep worse.
Yes, of course this is very difficult to do if he has become an addict and is ignorant of good advice from the people around him.
You are right, new problems will just happen if he doesn't control his gambling, including in his own family. Because the family will also feel great disappointment at losing money that should not have happened, and the addict immediately realizes and starts thinking about how to overcome it, the best thing is that he should stop and apologize to his family so as not to repeat it a second time.