^^^It is just a like trying to get a right answer when you are asking the wrong question in my view. The OP speaks about poverty and gambling, which is already something of a red flag. Gambling is only for fun unless you are a professional player - e.g. a Poker professional, which is usually not the case if you are poor since you will probably have not money to play and not that much free time to do so.
Well, the question isn't logically wrong because there are hundreds of cases in the world of people gambling away all their wealth or savings or properties and then becoming financially unstable only because of their gambling addiction. You can read this article to understand what I'm talking about in general, and this is only one story, there are literally hundreds and thousands of people who lose substantial amounts of money in gambling even when they can't afford to do that continuously which means they are losing whatever they have which logically means they are moving towards poverty.
Gambling addiction can be very dangerous. Some people might take it lightly saying that it isn't that serious and a person can easily get out of it, but that isn't how the reality is. The reality is, someone who becomes addicted to gambling will most probably ruin their life and the lives of others directly associated with them if they don't realize it in the initial stage and back off.