some gambling cases could be due to loneliness , but majority don't . people get addicted to drugs to escape away from reality , they don't want to face their troubles in life . So addiction leads to loneliness not the other way ! .
I think this kind of discussion needs a supervision of a suitable specialist not on forums where anyone can say random words.
It's still better to discuss with this kind of issues to also help other gamblers to narrow down the main issue of being lonely which leads to addiction. Addiction is a serious matter which needs to be handled by some specialist and you definitely right with your concern.
But first step must be taken from these gamblers. If they dont make their minds clear and they cant even decide what to do and when to do, how can be they able to remit this gambling thing from their minds. First, they should define the wrong and right in their minds. Believe me this would let them find gambling as the worst ever game played by human race. Good luck everyone.