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If those who have money will consider gambling as a hobby, I think they will regret it especially if they often lose from gambling. Gambling is not a hobby that can be done by people because there is a loss factor that can make them lose everything in the end. Maybe if later there was a thesis issued by an educational institution about how dangerous gambling is to people, it would help them to think twice if they wanted to gamble.
I think those gamblers who have a lot of money will never regret when they lose because they realize that gambling is only for entertainment, so when people do research on gambling, they should be able to find sources with very large amounts because of the principle of rich people and people who don't having a lot of money will be different.
I think those who get into gambling - do not read any thesis. Likewise those who quit gambling doesnt do it after reading any research.
It's the person own will to gamble or not to gamble. The thesis won't be much helpful.