Gambling is a general term and there are different games under it including lottery. When you play the lottery you are playing a gambling and you are wagering but it's funny if you will make a pledge as there is still no assurance to win in gambling. It's the gamblers' fault on why they lose their money because they are the ones who play gambling and the casino didn't forced them. What is worse is they can say negative things to it after.
The right way to play gambling is to not take it seriously. That way, you will never risk your valuables, become addicted, or be frustrated to it but you will only feel happy because you have been entertained.
When we lose, we shouldn't blame the casino for the loss because it is our own desire to play gambling. We should know that there is no guarantee of winning at gambling, so we must realize when it's time for us to play and stop. And to avoid losing a lot, we must limit the amount of money for gambling. Meanwhile, the casino never forces us to use a lot of money for gambling. If you consider gambling as entertainment, you will not use a lot of money and will not think about getting a win from gambling because it is a difficult thing.