While there are babies born of mothers who use cocaine or crack during pregnancy, most of these women also use other drugs and have other prenatal problems. Addicts cannot be medically treated. Actually, addicts are medically detoxified, when appropriate, in hospitals all the time. Addicts are bad, crazy, or stupid. Everyone who uses cocaine or heroin is an addict.
Most people can use cocaine or heroin for awhile and stop using when they decide to stop.
Marijuana is not addicting. Caffeine is addicting. Actually, caffeine probably is not addicting, according to DSM criteria. Anyone who drinks too much, too often, is an addict. In fact, most college students abuse alcohol, while some show dependence on alcohol at some point in their drinking careers.