-snip-
Everyone around me that I saw took gambling as a source of income become broke. They sold some of their belongings like TV, computer and some other things just because they are so much addicted. But luckily they have all recovered after they know that they are about to finish ruining their lives. Gambling is not a source of income. Anyone that think gambling is a source of income is foolish.
The most painful truth is when someone decides to gamble as their main source of income instead of spending some money to have fun. I know not all gamblers are the same - but it is very unfortunate if they make gambling as a source of income. It is okay if someone spends 5% to 10% of their income to have fun in gambling - but when they decide to bet 100% of their income to double it, then that is clearly self-deception.
I never asked my friends if they were making money from gambling and make gambling a source of income - but it's possible that they are, they just don't want to admit it. I personally wouldn't warn them more than once - it's their business and they'll pay the consequences.