about 30years ago in Europe they did a study of Heroin Addicts, the study set out to prove that Marijuana was the real gateway drug to harder drugs, funny thing happened when they interviewed these people, almost none of them EVER SMOKED WEED, But Every Last one of them Smoked Cigarettes and Drank Alcohol. Study was subsequently buried and not widely publicized.
Guarantee you more of those heroin addicts were prescribed legal painkillers, prior to their addiction, than smoked marijuana.