This may be because their minds are already at the point where they are very confused and finally fall into it even though it is very naive to say that gambling can make their daily lives fulfilled because basically this is what makes them even more devastated.
Relying on luck to survive obviously won't always run smoothly in my opinion, so this kind of thing is not the right thing to do.
It all start with low esteem, life failures, depression, heartbrokenness and all manner of life disappointments in their various forms, this are the things that make many gamblers loose hope and give up their determined heart to settle for less, they use gambling to whine away time, ease depression and to yhyet busy and engaged, but gambling with such approach shouldn't be seen as the bus stop to making it in life, rather it must be a means that serves an encouragement to gamblers to position themselves right for diverse opportunities through life by engaging the pleasure and hope of making it through one day.
Things like this are actually if we study further when gambling just for fun and to fill spare time, it's not wrong as long as they don't use all the money they have, but the problem is that many people sometimes give all the money they have for gambling that is functioned in the hope of being able to meet the needs of their lives which of course is not justified.
Anyone can still gamble but we don't need to be that desperate to make gambling a lifeline let alone to fulfill our daily needs.
There have been situations whereby a gambler spend all his life savings from retirement into gambling, why should you expect such a gambler at old age not to depressed and thrown into thinking always, some have been into trouble they can't wave all because they used the money that does not belong to them within their reach to gamble, to say the worst some have been sentenced because of gambling while many have also suffered losses in many forms through the same gambling and lost their life as well, all these happens if we fail to play our role well, gambling shouldn't be a threat to is but what we should lobe to do with passion when we are indeed doing it right.