Base on my experience it is really hard to quit gambling specially when you are already used to it, before my parents will get mad at me becauase I forgot my responsibility as a mom also they sees me almost got broke because of being addicted in gambling. One day I realize to quit gambling and I really want to do it so by the help of my love ones and determination to change I now stop or quit in gambling .
No doubt in your saying that when someone gets used to gambling, it becomes really difficult for that person to stay away from it for the sake of good but as we all know this fact that nothing is impossible in this world, so quitting gambling for the sake of good can also be done. I know it would take a little bit more time than a normal player but he will continue.