What I find hilarious is that wellness woo woo people insist that nicotine is not addictive, and it's actually the chemicals in the cigarettes that create dependency.
I knew going in that it is addictive. Never been addicted to anything in my life before except maybe caffeine, so I figured I don't have an addictive personality. Nicotine by itself doesn't seem to be that bad for you, but it's definitely addictive.