Do you drink alcohol? If so you're a drug user... We've just decided for myriad, commercial, political and historical reasons to legitimise some and make others illegal. Note I never used the word "scientific" in that sentence.
I don't drink alcohol. The best advocates of drug use are drug users. They're quite passionate about it. Where I come from, they make fun of you if you don't drink and sing a song about how you're "too weak to drink." Every occasion calls for a drink: childbirth, Friday, getting married, getting divorced. It is so common that you're the weird one for not drinking.
