As you understand and believe, my friend, gambling is nothing more than an entertainment activity, and that is the best perspective to bring in an activity that depends on luck. I can imagine how disappointed we are when we lose a lot of money that we earn from the hard work we do in life, so having a proper understanding of what your activities are actually doing is basic knowledge that a gambler must have, this is a risky activity and there is always no certainty in terms of victory, therefore all actions must be taken in a measured manner.
But some people have taken gambling to an unprecedented level thereby taking breathtaking decisions to gamble with all they have. I know and I agree with you when you said gambling is nothing more than an entertainment activity and I also have the same believe that gambling should be taken as a game of show and fun and nothing else. But that doesn't apply to all gamblers as some will take risks that are way beyond your comprehension. I don't support that kind of decision making because when it fails and the person loses, which is most likely to happen, it will end up consuming them health wise especially their psychological health. This is why I don't believe in gambling with all you have with the expectations of making unimaginable profits.
Yes, because if we are able to use our common sense and rational perspective when assessing what and how gambling activities actually are, then I think we will all have the same understanding and belief, as I said above that this is nothing more than just an entertainment activity, or like a playground when you have boring free time.
This means that some gamblers who even dare to take various decisions and aggressive actions are those who do not understand how bad the risks are in these activities when done in the wrong way which tends to be excessive.
Therefore, I think it is clear that this is why we are always advised to always use our rational mindset when finding anything, none other than because that way it is less likely for us to try to make various stupid or careless decisions when you already know the risks and also when you already understand that winning depends on luck.