I think that this is a state of naive belief that exactly half the time a gambling player will win and he will be lucky because the money won during the period of luck will be much more than lost, this period passes as the given player gains experience in gambling. And for most players who start playing a lot and often, this period is not so long. Realizing that it is a pleasure to gamble and simply pay for the pleasure received is a much more reasonable form of player behavior. And accordingly his individual perception of the game process.
I think that all normal players should think this way and, accordingly, should not feel too sorry for the money they lost.
I agree with you. Those who gamble to earn more money are wasting their time. They think luck can give them bigger money than the losses they have experienced. This is the same as a thread here that says there is someone who gambles every day because they don't want to miss a lucky day. I think it's all naive thinking about how gambling should be played. It's just a game and you pay to play. If you are lucky you will get a return but that is just a bonus. You can consider the money you have spent to enjoy the game, not expect a return.
Thinking about gambling as a sort of entertainment, rather than an investment, is a more healthier approach. This reduces your chances of falling victim to gambling addiction. You're also less likely to spend money you can't afford to lose, and you'll be able to relax and enjoy the game without worrying about a big payout.
The concept of responsible gambling is that you should treat gambling as a form of entertainment and only gamble with money you can afford to lose. This entails establishing limitations for oneself, both in terms of money spent and time spent gambling. You should also make sure that you're not gambling to escape from problems or negative emotions, and that you're not letting gambling interfere with your relationships or responsibilities.