Wow, you just don't get it. As a child of the drug culture in the 60's, I can tell you that most want the different highs/lows that come with the various drugs you mentioned.
1. THC is a very very slight hallucinogenic and has many side affects, the least of all being lack of motivation.
2. Cocaine and Meth are stimulants that rot your teeth and other body parts.
3. Heroin is full body depressant and WILL turn you into a zombie if not kill you.
4. Xanax, Klonopin, and Valium are also nerve relaxing chemicals. Not as addictive, but pleasurable for those who need a different feel from just pot.
5. Oxycontin is a pain reliever that gives the same low as the above Benzos.
It's the rare case that someone who starts on Pot doesn't want the highs and lows of the other drugs. Mark my words...the States/Cities that are allowing legal Marijuana WILL experience more drug problems and associated criminal activity.
Yes, alcohol is addictive and screw up someone who can't handle it, so don't go there.
That reminds me, I need to stock up on JD :)
Don’t forget the CANNABINOID VOMITING IS UNDER REPORTED along with the deaths.