Often the reason for a family breaking apart is when the man in the family ain't able to provide support. Some other fathers react modestly but some are harsher. It is his fault though he has to man up for that and come home as it's the kids who will suffer for his mistake.
He is your brother, you must idea where to find him. Bring him back.
The children of this family are facing exactly the same problem, as the father commits a crime of gambling and suffers losses and addictions, but his sons and daughters and wives suffer. Why is there such a rule, a gambler will commit a crime and his family will suffer the consequences. Because when a man is unable to lead a family, gambling becomes a factor in the family becoming completely destitute. A person who has gambled has faced most of the people and his family is suffering day after day.