Afaik schizophrenia is a spectrum, so some are bound to be affected worse than others. I also didn't say it was the only reason for people having trouble kickin

Afaik schizophrenia is a spectrum, so some are bound to be affected worse than others. I also didn't say it was the only reason for people having trouble kicking the habit, only one of the factors for it, so there's still plenty of room for non-schizophrenics not being able to kick the habit due to tobacco (and the additives tobacco companies add to it) being highly addictive.