1. Support from the government.
Countries who gamble a lot has solid laws protecting their players so gamblers in those countries can just freely gamble as much as they want without having to worry about their rights. This doesn't mean that the countries have very free and loose rules but it just means that they have clear frameworks. Some other countries have some limitations but since their rules are clear, many still gamble.
2. Bigger paychecks.
Not all rich people are gamblers but they certainly have more chances to gamble if they wanted to. According to data, the higher the income is in some countries the more people gamble in that country. Since the average citizen is earning a lot, even if they spend quite a significant amount of money in gambling this will still not cause financial doom.
Is it fair to assume that a better economy and a solid framework will make people gamble more but be addicted less? This is the
source, by the way.
I'm not so sure about your complete evaluation but I can tell you for a fact that people gamble a lot because of money and the love for money is coming from been idle and lack of work. There are many gamblers in some good that don't have anything about their life, they don't know anything other than just gamble and that's all, you see t them do everything just to gamble, you never see them engage in any other things but just gamble and sleep in the night.
One quick puzzle I find hard to solve is the way they don't quit gambling, I saw one video from street gambling interview on TikTok yesterday, a guy was interview about his gambling lifestyle and he says since he has been gambling in 2020, he has never won big amount of money and he has lost alot of momey, sometimes he even go hungry without eating and he will used the amount to gamble. People were laughing and making jokes but they don't know how serious that boy must have gone through with addiction. I'm very certain that if there is something better doing, that boy would have look for other options to make a good living instead of having hope on gambling.