Exactly you don't have to focus on what the casinos are making you should focus on minimising your gambling habit like for instance gambling responsibly, those that gambling irresponsible are the once that the casino usually gain their revenue from the most , because of their reckless way of gambling, e.g someone with $1k going all in with $800 in gambling that's a poor gambling habit because you are using what you can't afford to lose and for instance endup losing it you will start calling gambling and casinos scam and no one force you to go all in with such amount of money.
That is why we must always be careful when playing gambling and not focus in making money because that will be difficult. We must reduces our tension in gambling especially when we already lose some money. We don't wants to see our losses become bigger so that is why we need to limit our gambling activities and the money we use to gambling. We can not spend too much money in gambling just because we want to wins because that will not happen as we want. Gambling needs luck to win so we must realizes that we will be difficult to win if we don't have luck. When we can reduce our tension especially in the last bet, we will see that we can still calm down even if that is our last bet. We will not think to recover our losses before because we will see that is too difficult for us.
It happened in my opinion because they were carried away by the atmosphere, when gambling has produced results whether it is losing or winning then it will give its own sensation, for example gambling that is done ends in defeat then what might happen is a desire to recover the losses that have previously occurred and when gambling has produced winning results then what could happen is the thought of wanting to get even greater profits, and with these two incidents if we experience a loss of self-control then this could happen.
The tension that often occurs at the end of gambling can affect us, especially if we do not have good self-control then bad things can happen. Unlike when we can control ourselves then everything will be safe and under control.
Indeed, you are right. If they can not control their feeling when they lose, they will tempt to keep playing gambling without thinks that they already lose too much. If they want to recover their losses, they must consider that will difficult to do as gambling will not gives the chance to get their money back.
We must have good self control to prevents the bad things happen because in gambling, we may see many temptations from gambling that can lead us to get that bad things. If we can always be careful, we will not have a problem and enjoy the games.