>People who have problem with alcohol would have problems with "less harmful" (weed I assume?) drugs too, it's a personality trait.
You're blatantly assuming here and making it a categorical statement. They usually don't, neither statistically or at least in my experience, anecdotally. I and many friends of mine regularly drink, but most of us barely touch other drugs. Weed occasionally for some of my friends (I personally dislike it intensely) but things like coke and so forth, pretty much nothing, in a wide group of people who are regular consumers of alcohol.
You're blatantly assuming here and making it a categorical statement. They usually don't, neither statistically or at least in my experience, anecdotally. I and many friends of mine regularly drink, but most of us barely touch other drugs. Weed occasionally for some of my friends (I personally dislike it intensely) but things like coke and so forth, pretty much nothing, in a wide group of people who are regular consumers of alcohol.