We will think like this before starting gambling, but once we are in live betting, we can not control our emotions if we are in win or loss
I kept on telling this and yet people dont read at all, it has nothing to do with emotion. Either you are happy or mad it doesnt really make you win or lose. The fact is that , it require you think straight, it is based on logic and not emotion, if you are logically sane then you wont be wagering everything that you has even if you are angry
When seen through logic, a lot of things don't make sense, if you used logic to begin with you will not gamble at all since you will know there is no way to earn money in the first place, and if you say you gamble for fun someone using logic will find another way to get fun without losing money, so I dont think it is that simple.
You have a good recommendation on the above, however you cannot control what people want as you do not know their happiness. We do gamble to earn and to have fun and it's a hell of happiness we feel when we win, but when we lose we sometimes complain and have a bad day but a real gambler will be able to erase that bad experience. It's the fun that is worth paying for.