Because ultimately the best way for someone to realise that the importance of self-control in gambling is to lose so that when they have felt a loss then surely they will try to reorganise and think about the actions that they have finally done as a form of evaluation.
The moment you lose that is when you will be able to control your self because we gamblers have similar abilities when we lose we always want to make back the money we have lost and that is like one of the problems because when you keep playing to make back your money, then you keep losing, and control is very essential we just have to be very honest gambling is not somthing you joke with because even with control you won't be able to alway control your self.
I say this because I have experienced a point where I lost quite a large amount of money in terms of nominal which was a turning point for me to be more mature than before. Although it cannot be denied that until now I still gamble but as much as possible I try to focus more on myself so that I don't get stuck in the same way as before which makes me lose quite a lot and I always limit and try not to cross the limit when I have lost the nominal amount that I have agreed with myself every week.
There is no way you would not have lose a lot of money when it comes to gambling just that the more you lose the more your chances of winning also increases because you will not know exactly when you will get lucky, there are periods that you just have to let go the whole thing for some time, taking a break is very important because gambling can actually be very consuming, so we all just have to be careful not to get consumed because when it get to that point then everything becomes dangerous because there are people that even sell there property just to gamble that is the problem with gambling.