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In our world there are not so many free entertainment so everything has to be paid for and gambling is no exception. Those who believe that gambling is an easy way to make money initially has a wrong idea about this area of entertainment. Win in gambling of course you can, but always remember that the winnings are formed from the lost money other players, because gambling is a zero-sum game.
Yes what you said makes a little sense, one of the reasons why the risk in gambling is always a part of the game that cannot be completely avoided is probably because the casino has set the concept that when you win then there are other gamblers who lose or vice versa, and that is why there is no consistency in terms of winning, because sometimes you also have to be made a victim by the casino to give victory to other gamblers, it all happens by chance. Seeing this, maybe I would say that casinos are really very smart in making strategies to keep gamblers going, like when a gambler loses then the casino will give them a number of wins to restore the spirit and hope of the players but in the end the casino does the same thing again when the gamblers start to be confident, this is a long-term brainwashing cycle.