CVS, Walgreens, etc. all sell alcohol. Walmart and Kroger, which have pharmacies, also sell cigarettes.

I'm not seeing the problem with weed as well.

Edit: Come to think of it, I can go to any of those locations today and get CBD products, making this even more ridiculous.

Oh for fucks sake. People like you will never agree enough studies have been performed.

The barrier to medical studies has been the Federal Government (DEA) for several decades. They're changing it but slowly.
Since 1968 the only place researchers could legally obtain cannabis for research was from a government lab in Mississippi, and as noted below, they wouldn't even give you any. Researchers who did obtain it noted it was often old, low potency, and generally low quality, making it not very useful.

Linked DEA article:

On May 14, 2021, the Drug Enforcement Administration took an important step to increase opportunities for medical and scientific research. DEA is nearing the end of its review of certain marijuana grower applications, thereby allowing it to soon register additional entities authorized to produce marijuana for research purposes. Currently, the National Center for the Development of Natural Products at the University of Mississippi is the only approved supplier of marijuana for research purposes in the United States, and that production has been exclusively for the National Institute on Drug Abuse.

NPR notes:

Yet scientists still aren't allowed to simply use the cannabis sold at state-licensed dispensaries for their clinical research because cannabis remains illegal under federal law.
"We'll see a decade or more of explosive cannabis research and potential new therapies," says Dr. Steve Groff, founder and chairman of Groff North America, one of three companies that has publicly announced it has preliminary approval from the federal government to cultivate cannabis for research.

Many of these places still sell cigarettes. CVS only stopped in the past 5 years... Not all things in pharmacies are medicine or any good for you.

While there are definite medical uses for cannabis, I always felt like the medical movement was both underhanded and dangerous.

It was underhanded because, like you said, there’s not a lot of research into its medical uses and doesn’t belong in a pharmacy. I’ve got a medical card, and my “diagnosis” consisted of me talking to a doctor for five minutes. It does help with my anxiety, but a lot of my usage is recreational.

It was dangerous because once we have medical research it won’t be hard to isolate the chemicals and make a pill, which puts recreational at risk of crackdown.