True in some cases, but for some it's simply that addiction is genetic. It is almost physically/mentally impossible for them to say no to something once they ex

True in some cases, but for some it's simply that addiction is genetic. It is almost physically/mentally impossible for them to say no to something once they experienced a high or euphoria from it, unless they are dogged about avoiding it at all costs. An alcoholic addiction can easily become an opiate/stimulant addiction or gambling addiction, they have to somehow manage to stay away from all of it. Being on the street makes that even harder because now you also have the stress of not having any shelter.