That's only if for example they can really control themselves especially in terms of emotions, but in essence as I said above that the main key to being able to avoid losing money in significant amounts is only by having the ability to "accept the state of defeat", because all decisions are in the hands of the gamblers themselves, meaning that what we must first resolve is the trigger because there will be no impact whatsoever if we can overcome something that triggers the occurrence of various unwanted things. So the first in my opinion is to admit the following also by accepting that you have lost and lost money and the second is to understand that that's what gambling is like.
Let it go and move forward, if you use spare money it's easier to deal with moving forward but if you use certain amount of money, the pressure really lead you to push for more, thinking that you need to keep adding money to recover whatever you already lose, but instead you suffer and lose more.
If you practice that control and you keep doing same discipline the chance is high that you'll be able to develop good gambling habits that will help you to make a big mistake while in session.