I think people get the addicted because of the profit that gambling could bring to us. It's really easy money and fast.
Agree this is the most reason why people get used to it or get addicted to it because first the people really want an easy earning of money with just a second or just a matter of time without really exerting a lot of effort on doing it. In gambling just play then you can win a lot , but if you are not lucky enough youll end up lossing a lot too but though you could loss a lot still there are playing or doing gambles.