Did they though? Not accounting for confounding factors like “other drugs” seems to indicate it’s not about the risks of cannabis use so much as the risks from all sources that the average cannabis user faces. Using only cannabis might have zero impact or even be beneficial based on this evidence (if you hypothesize that most of the negative outcomes were cannabis+cocaine users, for instance).

Still good data, but I don’t think it’s predictive for what cannabis use leads to (unless you assume that taking up cannabis makes you proportionately more likely to also take up whatever the confounding factors were).

Especially if medical prescriptions for it aren't necessary.

Confounding migraines for weed prescriptions and very real stroke risk and a desire for low THC marijuana isn't going to be a happy show I want to go through watching that happen to friends.

It makes a mockery of real medical issues.

Doctors and health care should be involved in drug use and advising patients, maybe even clean supplies or other things.

But we got the ACA of public health options with medical marijuana. And I want to remember Obama and others for inspiring us, not hacks.

A lot of people won't be believed in time.

Exactly, alcohol IMHO affects judgment significantly worse than cannabis.

Back in college I had a friend find a new dealer who he thought was pretty cool until he tossed out a rock in the middle of a pot deal, my friend never went back.

Myself I have been involved with weed a long time and never seen cocaine though my son did go into town one night and lock himself out of his car and have an experience we call "the night of the living baseheads."

The best drug dealer at my old school was a guy who would take chances nobody else would; I knew him somebody who dealt weed, psychedelic mushrooms and acid to my friends although I was persona-non-gratis with him because he was seriously criminally minded and led a gay bashing gang that mostly bashed straight people who were perceived as allies [1], although it took just one snarky comment (my case) or advising somebody being shot at with a paint pellet gun to see the police (the popular president of the paint pellet gun club.)

He eventually got caught bashing in an RA in the face with a rock shot with one of those rubber band catapults people use to shoot water balloons at the beach. He was banned from campus but I saw him once when he was dropping off a delivery for a friend. My friend later told me that he'd been caught on videotape dealing 3kg of cocaine to an undercover cop and he did time.

That's an unusual case. Except for that guy and the Vietnamese kid who took money and never delivered the weed to my wife when she was in high school, all the pot dealers I knew were basically responsible and law-abiding people who only dealt pot and other soft drugs. Funny somebody dropped a dime on the later.

[1] this was the 1980s during peak AIDS panic and I guess they were afraid if they spilled gay blood they might get AIDS or something

I live in a legalized Marijauna country and there is no black market. The prices in the legal stores are actually lower than the former black market prices.