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.