Well, I've never wondered why most gamblers (according to the OP) continue to gamble after winning. I'm not. If the winnings are worth taking, then I will stop gambling this time. Because I already got what I wanted. And it would be very unpleasant to lose immediately after winning (I have already learned from this experience). Of course, if the winnings are some kind of penny, then I continue, since this does not count as a win. And for some reason, it seems to me that there are quite a lot of people who adhere to the same behavior as me.

Is this OP suggesting using gambling as therapy? It seems to me that this is a very risky way, and besides, I highly doubt that all this will be effective. Gambling is primarily entertainment. I do not think that it is necessary to give psychotherapeutic properties to gambling, just as it is a mistake to consider gambling as a kind of business or work. In other words, I don't think gambling can fix any character flaws. But gambling is very likely to worsen the problems of a weak-willed person. Of course, this is just a subjective opinion.

Will the money become unnecessary? Will work turn into a hobby? I'm learning something very familiar about this... This is communism! Has Elon Musk turned into a Marxist?
In fact, in any economy in which there is a division of labor, there is inevitably an exchange of products of production. Any exchange based on barter always evolves into trade. Trade requires the existence of a medium of exchange. The medium of exchange is money.

Casinos are certainly not obligated to do this. The government of the country can direct part of the taxes received from gambling for such purposes, but this is not an obligation, but one of the possible solutions to the problem. In the meantime, the problem is being solved by the existence of private rehabilitation centers.

Recently, a big scandal broke out in Russia when it was revealed that instead of treating patients in these institutions, they were beaten, starved, bullied, and tortured. It contains not only addicted gamblers, but also drug addicts, alcoholics, and just people addicted to social networks or computer games. The owner of a network of rehabilitation centers was arrested, and a few days later, the owner of another network was arrested, who turned out to be a former drug addict. The "doctors" who turned out to be former drug addicts (naturally without medical education) tried to escape, but were also caught and arrested. Not only adult patients were bullied, but also minors (a separate question is, what kind of parents would send their child to such a place?).

Every time I read such dramatic stories, I wonder why the casino is the cause of misfortune and not the protagonist of such a story. Here, too, it looks as if gambling has ruined a young man's career. But this man came to the end of this story by himself. And no, I don't think he can get out of this situation. Alas, it is impossible to turn back time and bring back the lost years. Moreover, a young man needs to change himself (not to give in to his passions), and this is very difficult.

Perhaps an addicted gambler finds himself in a situation where it can't get any worse (for example, too much debt), and the only way out of this situation is to rely on the chance to win back gambling. In other words, for example, the debt is so unrealistic to pay off that nothing will change from its increase. But there is a slim chance of solving the problem at once, if you're lucky. That's about how you can explain it.

There is no doubt that a person's environment has a certain influence on him. But in most cases, this influence is harmful. A person descends to the level of his environment. But to be honest, I don't know a single person who somehow began to communicate with rich people and therefore became rich himself because he suddenly became the same, adopted their way of thinking, etc. There is also the question of why these successful people would want to communicate with someone who is not at their level? If, of course, you take a person with ambitions for a successful person, which are expressed in terms of "taking out a loan and winning the jackpot," then yes, that's right, such ambitions are very contagious...

A relic from the past:
The price of gold on January 1, 2000 was $289 per ounce. The current price is approximately $4,200 per ounce. Thus, in the first quarter of the 21st century, the price of gold increased by ~14.5 times.
On January 1, 2000, the S&P 500 index stood at 1,469 points. Now it stands at 6857 points. Thus, in the first quarter of this century, it has grown ~4.6 times.

There is a well-known proverb about eggs and a basket. So the optimal solution would be to diversify money between these three assets.

It's strange that you're so surprised by the obvious. Your rights, your interests, or the interests of other people are the last thing the government cares about. Those in power always, everywhere in any country, pursue only their own interests. Casino regulation is done only in order to obtain a portion of the gambling profits under a legitimate pretext. However, the government will never say that. Officials and regulators will be foaming at the mouth to prove that they are ready to almost give their lives in order to protect the rights and interests of ordinary citizens. There is nothing new or surprising about this.

It is not clear why a medical diagnosis should be made depending on the percentage of gambling expenses.These are not interdependent phenomena at all. Maybe a person earns enough money to not lower his standard of living in any way, even if he simply loses 50% of his income in gambling. There are addicted gamblers who lose tens or hundreds of thousands of dollars, and there are also addicted gamblers who lose 10 or 100 dollars. Both are addicted to gambling. For both, it may be as little as 5% of their income.