If you are right, just making coca cola illegal would make it a gate way product to heroin.<quoted text>is i started out using an illegal drug and it led to the use of different illegal drugs, then how is that first drug not a gateway to the second drug. & incidentally, i aced my freshman logic class. take a poll of heroin user and i'll bet the majority started with pot. what does being a math teacher have to do with it? i come from a family a teachers on both sides of my family tree. don't pretend to have an advantage over me. i'm in my 60's. i've seen it all. i see the teenage slingers waiting out side for the dispensaries. and since when is hash medicinal? you are wrong.
To measure if cannabis leads to heroin, for example, you must compare the proportion of cannabis user led to heroin, not the proportion of heroin user who begin with cannabis.
Your way to reason is invalid. 100% of the heroin user have begun with milk.