Remember that there are people that are ready to work but due to them region they are, they don't have work that could keep them going taking care of their bills without depending on betting. Betting has been a easy way to make money which many gamblers are still compromising till now. We can make money from gambling if we bet on the right team, betting on games that will be quite rewarding, giving the actual results that we want. I don't blame many gamblers are seeing gambling as a source of income because, many people are passing through shits which is making them to turn to illegal means of making money.
Gambling is such a mind-blowing phenomenon that even those who do not play roulette and similar types of gambling (and betting too) are forced to listen to stories about winners and lucky ones, to whom fortune was favorable. And these people outside of gambling are always a little offended by the fact that someone got a lot of money without doing anything, and workers have to work and work without hope for a miracle. That is why gambling is so widespread - it is its own strongest advertisement, because stories spread by word of mouth and from the news. Only no one talks about the thousands of losers and their problems.