Most people who gamble with the hope that they might get significant wins which might change their lives actually realize that gambling isn't a way to earn money, but they are just hopeful and feel that maybe one of these days their luck will sparkle a little bit and they may hit a jackpot. The reason why they think of gambling this way is because they know that gambling and lotteries are the only ways that might change their lives in just a blink of an eye, so they keep trying.
What I feel is that a person who is poor and gambles with this mindset will barely get addicted to gambling because they obviously have a very small amount to carry on their gambling activities and once they lose that, they don't have a choice but to wait until they get some more money that they can use to try again. And for someone to get addicted to gambling, they need to have money to be able to make more deposits once they lose the initial bankroll.
At the beginning alone the gambler will accept the fact of gambling for the earning and after the experiencing with win and loss in the game.The gambler will conclude the thing,the gambling is not for the people to earn money from it.If you had the free dollars,the gambling will help to get some fun by the usage of money into the gambling.
Though, we cannot ignore the fact there is an important percentage of people who start gambling initially do not look at it as a source of entertainment, but rather a way to have the chance to get a big win. That is because in popular culture and in gambling culture in general, big wins and jackpots are more publicited and advertised both in social media and also by the casino themselves. So if people (specially young and unexperienced gamblers) continuously get bombarded with stories of success, it would become too tempting for them to try to earn money from casinos, instead of enjoying the experience of gambling itself.
it reminds me a bit what happens with social media like Instagram, the youth constantly get pictures of people alledgely living a perfect life, which encourage them not to take the best choices in their own life and also hurts their self-esteem, it is not exactly what happens with gambling, but has some points in common.