The buck stops here. Photographer: Matthew Staver/Bloomberg The
buck stops here. Photographer: Matthew Staver/Bloomberg  One of
Andrew Sullivan’s readers has an interesting theory about why
marijuana might be a gateway drug:  Since we’re on to the topic
of “marijuana as a gateway drug”, I’d like to bring up an
argument I almost never hear, and have no idea why: Isn’t it
possible that marijuana acts as a gateway drug for some people
because they buy those other drugs from the same guy? I’m sure a
lot of people have gotten the Amazon-sales pitch from their pot
dealer (“If you like marijuana, you might also enjoy … ”). I
have never been tempted, but if I wanted to try cocaine or
mushrooms, etc., I would probably just ask the guy I buy pot
from. My guess is that legalizing marijuana and putting it in
pharmacies would limit people’s access to harder drugs for this
very reason.  I’m not sure how true this is -- most people I
know who tried harder drugs got them from the friends they
smoked pot with, not the guy who