Yes, it is very important to maintain awareness and self-control in gambling, because gambling is a trap where a gambler will lose money by gambling beyond his ability without knowing it. And the only reason for this is gambling addiction, greed, uncontrollability and the desire to win more, which often lead to big losses.
Therefore, a gambler must have the ability to control himself, accept both the results of winning or losing, keep himself in control in both situations, and at that time stop gambling.
Currently, gambling has reached a stage where a gambler wins big or loses, he will eventually lose his money.
When a gambler wins big, he keeps gambling in the hope of winning more, and loses everything. Again, when a gambler loses money, he becomes emotional, and under the influence of emotions, he keeps gambling uncontrollably, and loses everything.
Yes, a gambler must learn how to control himself in gambling so he will not lose control because gambling can tempts him easily even he will not realize that he actually gets in deeper in gambling. He will becomes greed when he win the games and want to chase more winning without thinks that he can lose all of his money. And when he becomes addicted to gambling, he can gambling very often without thinks about doing the other activities because he use gambling as his main activities.
That is why we still hear some people can not let go off them from gambling easily because the temptation become bigger than he can though.
Limiting is intended to prevent anything bigger that is not desired, and of course it is true that one of the reasons why gambling is recommended to be done with full limits is so that we do not lose too much money, because we can see that there have been so many incidents of gamblers who lose a lot of money in gambling because they always ignore the limits, and what you say is true that we will never be able to make gambling a source of income, logically how can you make a place that runs based on probability to be used as a place to earn income, and also on the other hand it is clear that this gambling is a business for the casino. On the other hand, I think limits and self-control will always go hand in hand, or what I mean is that all of that will be easily done by a gambler if only from the start they knew how gambling really is and were aware of the risks.
With limitation, we will not let ourselves use too big money just to gambling because we know that can lead us to have a bigger lose. We always limit our money and time in gambling so we can be able to prevent the big lost but we can have fun in gambling. We don't want to see gambling posses us and takes all of our money without we realize so that is why having and learning controlling is a must for all gamblers. We use gambling as for fun and just gambling in our free time and not takes too long because we don't want to get tempts deeply.