Sometimes it might help to save a friend's life when not having some earnings from real life as well.
I wouldn't do that, I'll encourage him to look for a job instead of convincing him to gamble. I might be part of his misfortune if I'm the one encouraged him to gamble while he doesn't have a stable source of income.
Gamblers that doesn't have stable source of income will literally depend in gambling if they see a chance that they can make it as part of their lives. But I think that's not how it should go, I just can't feel it to encourage one person to gamble if I see the possible result.
Actually it could be a responsibility for you but the person is adult and he can make a right choice for himself.
He may be an adult but you don't push someone to the wrong term of using gambling as a way to earn "some earnings".
He has freedom of choice but you don't account yourself to push him that way. Its okay if you'll just teach him to gamble naturally and just to have fun, there's nothing wrong with that but to the extent of you want to help him but in the wrong way, I think that's a bad idea.
Convincing someone that gambling is the easiest way to earn money is really wrong thing to do so don't teach anyone in the wrong direction which makes the gambling as haunted among the normal people because they are doing for wrong purposes.
It is actually a very wrong thing to do and a wicked act I must say. I would not blame the person who is doing the conviction but I would blame the person who is actually gullible enough to get himself convinced when he should be able to make sane decisions on his own.
However, we still have to understand that sometimes, it is not everyone that can actually think on their own, and purposely trying to push them to do something that would affect them negatively if care is not taken, is always a bad thing to do.