Yes, but the importance of self control is very important, if he does not have self control, then no motivation will be effective for him, he will go to a worse situation day by day.
But, if under different circumstances the gambler has no family, then how will he recover and be free from addiction?
Of course this also depends on how good the neighborhood people are. and the people in his circle are also the most important and determine whether he can change or not. Self-control is the first thing you need to realize to make him stop gambling too often. good steps also need to be taken to change his mindset, such as coming to a psychologist to ask what is happening to him and reveal that he cannot be separated from gambling.
I don't know if this is really informative or helpful experience with my grandma, she really like gambling I'm not sure if she could be classified as "addict" but she could get violent and verbal abuse whenever she loss at gambling and would literally do it like it's part of her lifestyle. But we've decided to take a vacation like for months in the nature (beach) without the internet or any things just a wholesome moment for the family.
From the start she jokingly starting a game by card game of course we played with her but when she starting asking for bets we refused. For that whole month there's no gambling involved and she's starting to take care with us looking like a different person after we came home she jsut started hanging out with us and we ask her "aren't you gonna play gambling?" she'd just simply said "I rather spend my money to all you cuties." which makes me cry :,) I'm trying to point is maybe addicts just need a different environment where they can space themselves to toxic things that could destroy their life.