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What do you think this guy should do to stop this habit because I have tried my best to stop him but no way. You input is needed.
I would say not to give loans to friends who are addicted to this kind of gambling. I myself had a few friends who took loans from others and then gambled. He also took from me a few times but he used to take the loans for some other reason, but when I came to know that he gambled with loans. Since then I gave him No more loans. Moreover, I think it is better to keep distance from such public people. But it is better to encourage them that gambling is not just for fun, it will become a nightmare for your life if you become addicted.
No doubts, It is best not to lend money to friends who have a gambling addiction because providing such friends with loans can worsen their addiction. Setting boundaries and refusing to support their gambling habit financially can be a positive step in encouraging them to seek help and address their addiction.
But then, the question now is how do you know that the person will use the loan for gambling? This question is important because when a friend comes for a loan, even if he is a gambler, he will always justify the importance of the loan and also note that the loan is for a good course. So, it becomes difficult to deny such a friend loan.