When a gambler gets addicted to gambling, it's his fault and not the fault of the casino or any other individual therefore when they decide to blame other individuals I don't always get them. You're the one that decided to gamble, nobody is forcing you as you're gambling either as you want to entertain yourself or you're looking to make money therefore you have to discipline yourself so you don't get addicted. Gambling addiction causes many bad behaviours that won't give you good reputation.
When money preceded everything you do in gambling, the result is always addiction because instead of you to be looking at the fun while making money from the passion and in the end, the money you are so eager to make don't come, I hardly see gambling addicts make good amount of money from gambling, if they do then it means they have lost 5 times of what the have won and that means they have a lot of debt to settle with the one they just won, sometimes they aren't even enough to pay back the money they owe people and relatives due to there addiction.
To prevent gambling addiction, you need to stop chasing after your losses, when you lose don't keep gambling. Always take some break to get back your thinking right as losing can make you not to be thinking in the right sense and all the decisions you take during that time will be leading to more losses instead of making the situation better. When you're having a bad result, pay attention to your behaviour more.
To prevent gambling addiction, you don't have to wait until you have some losses. The first thing you need to do is to remove the mindset of making money that will solve all your life problems, gambling is not a place to get money to live the life you have always dream to have but if it happen, then consider yourself as a lucky champ favour by the luck in gambling. This way, even if you lose, chasing after the loss wouldn't mean anything to you.