You are absolutely right! We think that it's always important to know when you have to stop, because otherwise, you can get yourself in a trap of thinking that you can win every time.
It is very rare for people to win gambling consecutively, even if there are only a few, sometimes it happens to someone once a year. When gambling, it is important that gamblers must have control so that we can avoid falling into thoughts like this. because for me it's not knowing when to stop if you win, but knowing how to stop when you lose. If we cannot control this then we will be closer to addiction.
What gives gambling the internal thrill is not the money aspect but the action. The entire dynamic of gambling revolves around the overwhelming excitement that makes the gambler forget reality while under its influence. Your analysis says nothing but the obvious truth.