There's physiological addiction, withdrawal alleviation, and psychological addiction too, to games or habits or anything. Then, I find where you live, who you know, and how you use drugs in patterns while also living in those patterns, this makes it harder to quit. Finally, there's the coping, the escapism, the alternate forms of consciousness, which help us get through the suffering of daily life.

For me, only using legal "softcore" stuff, I have to think in terms of delay and moderation. I am fortunate, as Lincoln once said, to not have the urge and scourge of strong addiction to alcohol. I can't claim some magical fortitude or moral superiority, I was lucky enough to have a safe life and a "meh" feeling about alcohol and nicotine.