I'm not sure what you mean by a weak mind, and I'm not any expert on addictions, but I do think some people are more prone to addictions. And I guess one could be addicted to anything - it's just some addictions are more destructive than others.
Addictions also tend to run in societies which don't have bigger problems facing the individual.
Not many people in Sub Saharan Africa need addiction counseling. They are too busy scratching the dirt with a stick looking for their next meal. Increases in addictions among humans is directly linked to what we would call "modern society" and it's self celebrated successes.