Even for those that have no ambitions to become profitable, gaining control over their emotions is a good idea, as it is often the case that once people begin to lose, they get emotional about it, a reaction that can be understood by anyone since no one likes to lose money, but if the reaction of that person is very negative, it is entirely possible they will take a series of decisions which will cause them to lose even more money, while someone that controlled their emotions, will be able to limit their losses and cut their session short.
Theoretically, self-control is an important part of gambling. even if someone is just playing for fun. No doubt, emotions can change the situation when we carry out a gambling session. One more thing, basically when we have a gambling session, emotions will take part in it. yeah, because without emotions we wouldn't do any activities. In gambling, emotions can change according to the situation when we play. Angry emotions, happy and happy emotions always accompany us when we gamble. It doesn't matter if a gambler just plays without ambition, but when the situation is out of control, the emotion of anger will take over our gambling psychology. and usually if it's like this, most gamblers end up losing, even though this doesn't necessarily have to be the case.
Referring to what you said, controlling emotions is not as easy as we discussed. In practice, controlling emotions is quite difficult. especially, when you're worried because the game doesn't match your expectations. However, if discipline is often practiced, at least self-control can prevent someone from gambling carelessly. Unfortunately, we often lose control even though we have trained self-control. and IMO, this is one side of gambling. however, at least what you say can be justified.