I can testify that. I quitted heroin, when i was even shooting it, cold turkey. Yet, tobacco has proven itself harder to quit. Sure no hard physical withdrawal, but its so available and inside your life's habits that its so easy to fall again. Heroin is not socially acceptable and availability requires going to certain places to buy it.
It is not that tobacco is more addictive, It is the circunstances.
It is not that tobacco is more addictive, It is the circunstances.