Like I don't even see any reason why a gambler or gamblers should be financed because gambling is basically a business that has a 50/50 chance of winning and losing, like the percentage are both at equilibrium so anyone who wishes to make profits will understand that financing a gambler is a very big risk of losing your money, though sometimes there are individuals or group of gamblers that makes real predictions, but it's not all the time they make reliable predictions.
For the owner, the casino is indeed a profitable business, but not for gamblers who have two choices: winning and losing. But they are more likely to experience defeat than win, meaning they will experience defeat more often than win. And when they ask for funding for their gambling, they will not realize they have made the wrong decision by doing so and that they should not have done it. They don't need to gamble if they don't have any money and would rather do other things. Financing a gambler has a greater risk for both of them, especially if they are friends, because it will affect their relationship.