Actually we don't need to gamble but gambling use to attract us because no matte how risky it is we still to put bet because of the easy money thingy it offers for winning.
In my opinion the gamblers want a short cut way to collect more and more money in just minutes, because if you earn money in real and regular it will take a long time to save some money, but in gambling you will lose your savings or win more money without spending any time. Thats why people gamble; otherwise I dont think that there is any need for gambling and not all the people gamble. On the whole gambling is not good from any aspect.
It is true many of us out there want the short cut way to make some money but there are others who claim to be gambling for entertainment, but for me i gamble to make profits little by little for the long term in a form of investment rather than being greedy to go all out on one bet or game.
Yes people consider gambling as the shortest way of earning money even some people may have got money from it but I do not think that all people may be succeeded because gambling really the risky way of making money. We can see that most of the gambling have even lost their money, property and even their families in gambling. Gambling really ruined their life. But i think still the responsibility is still on head because of their less control over their emotions and having no such planning for playing gambling.