One thing that got my attention when I was in rehab was the noticeable separation of those of us who were "in" for alcohol as compared to those who were there to get treatment for narcotics. Those who identified as alcoholics were often referred to as "old drunks" who didn't have the same kinds of problems as those who were in treatment for drugs. Mind you, this was not the opinion of the staff but rather internal viewpoints. There were a few young alcoholics but not many, though probably there were plenty of multi-faceted combinations, including nicotine for many. There was also a noticeable difference in the ages of the "pure" alcoholics against the other addicts, so that was a factor in the differences in thinking, too. It was tough to see so many youth severely caught up in a culture that surrounds using drugs while addicted, perhaps that "I'm invincible" aspect of being young.