As a recovering alcoholic, I can tell you alcoholism doesn't discriminate and it's fairly prevalent. If you're concerned about falling into that sort of trap, just remember people, places, and things. But the reality I've found is that if you are already so concerned you might already be having your own issues with drinking, and going to grad school or work or really just a simple change of environment won't do much to change that. It's certainly true that some environments are worse than others, however. A college student, grad or undergrad, could link wanton drinking habits to a college lifestyle, perceiving them as acceptable. A student suffering from an addiction might also feel pushed to continue using in an effort to avoid the mentally and physically debilitating effects of withdrawal, as advisors are known to be unsympathetic and students will often do whatever it takes to pass/get good grades, as testing etc is viewed as a temporary situation with permanent effects.