The main reason behind peoples choosing gambling is greedy for needs and to fullfill it they chose gambling as it is the easiest way of earning high they think, but they forget that nothing is easy, everything needs skills and luck.
Maybe for some but not for most of people, I believe there are still a lot of smart gamblers who understands the risk and their chances of winning in gambling. To win is one of the hardest thing since they made sure we loss in the long run, but we always want to try our luck, however, we should always be wise to limit or minimize our gambling activity to avoid addiction and with addiction, greed will come into your mind which will turn your into a stupid gambler.