The day a gambler starts owning up to responsibilities then he's mentally mature. A lot of gamblers lose money and out of anger they start blaming the casino for their losses. It's a different case when your wins are withheld or not properly settled but in a case whereby you placed a bet and lost there's no point in trying to blame the casino for your own actions. It's a game and whether you like it or not you signed up to win or lose when you staked
Sometimes when people starts to take decisions to blame their own self when they lose, they get violent and destroy things hence people prefer to blame others or the casino when they lose. They don't do the same when they're winning but it's only the loss that they put into account and act upon. Casino doesn't have any hand in your losing, they don't want you win but the ones that are genuine won't do anything to put the name of their casino in a bad reputation because it's not easy to get out of such situations after your casino gets a bad reputation. Gamblers do some things that makes them to lose because they're too focused on wanting to win without knowing that they're making bad decisions that'll cause them their money.