I do not think they will listen because they do not need to be corrected what they need is to realize how wrong they are with the thought of gambling to earn as their primary source of income..
As long that kind of mindset is still imprinted to their minds they will never get to listen what everybody is trying to say, this is base on my own personal experience with dealing to a person which was my former co-worker in the same department who quit and resigned his job because he hit big in gambling and he tried to continue his living by doing more of the gambling work. We have not seen for a long time now but I heard he is now working again to a different company in which he again started at the bottom position.
Different person will have different threshold, if you're get paid for $1K per month, but you win $100K from gambling, most people will resign because they think their jobs aren't worth it anymore. However, when someone don't have experience to manage big amount of money, they usually spend their money for unnecessary thing and believe it's a good investment.
That's why someone who won a lottery mostly back become poor because they can't manage their money.
This is why if you’re into gambling, you should learn to balance it as well with making some investments. Once you make big winnings, proceed with planning on a potential investment that can be highly profitable and sustainable, that way even if you lose at times with gambling, at least you are also generating some decent profits from your investment. And with that, you can also make an assurance to yourself that your winnings will not be wasted, and won’t live again facing a lot of financial issues.
This kind of mindsets will allow you to make something decent in terms of finacial side, if you know how to make a good use of your winnings then it will give you that opporrtunities to create good source of income, something that you can generate more money and while you are still involve into gambling it can also helps to sustain your needs.
Though there are times that we really have that incorrect approach into gambling, something that lead us to overexceed our finances and lose a lot.
And adding to that, we are just doing the same mistake being move by greed and aim to win more instead of enjoying what we already achieved.