Sadly this is all to common. Many antibiotics are available for fish tanks. Goof balls have been using, dosing themselves and, self treating for decades.
That is a sad misinterpretation of facts. Ask why people would choose to use veterinary supplies and you might not mislead yourself so badly.
First, try to remember that vet school has higher admission standards than medical school.
In my own experience, I have had a few horribly inept and even dishonest doctors...in fact, I just got a prescription for pink eye from my family doctor and it tells me to put it in the eye not affected, right vs left.
This is the second time I've had a doctor choose for the wrong side because of the observer viewpoint being reversed from the patient. Left eyeis on the right side when facing the patient. The previous one wanted to do a procedure on the wrong leg. I happened to look at his notes when he left for a minute. When asked about his mistake, he explained that he was looking from his perspective, and sorry. I walked. out.
It's common enough that there have been campaigns to make surgery safer by making sure everyone knows about viewpoint when removing organs and any other little deals.
So for what reasons would a rational person opt for obtaining veterinary supplies?
Doctors will not prescribe just any amount the person feels they need. Obviously. But what about a person who knows they might need such supplies in an emergency? Out of luck.
What if they know that doctors are working for the "public good" as well as personal good, and will not give superior meds if they think an inferior med will do, because they are protecting the usefulness of the better drug, for the public good. They have dual and sometimes conflicting purposes.
Me, personally, I want the better product.
Those are only a couple of reasons why a *more* knowledgeable and *more* rational person might buy veterinary meds. When my dog almost died from some outside really nasty bug, my vet gave some stomach meds and antibiotic.
The dog picked up quickly, from perhaps a couple of hours from death's door. From being too weak to eat a grain of rice, was up and wagging real quick, but $500 later. There were some stomach pills and antibiotic left, so I saved them like gold, just in case. That disease hits FAST and when there is blood pouring out the back end, there's no time to spare.
A neighbor had her dog die as they were on the phone begging to get a credit or mercy visit. If I had known, I could have shared. I will not be without a supply of the stomach med or the antibiotic.
Antibiotic pet fish supplies.
There are responsible and life saving reasons to have emergency drug supplies, not least when the world is censoring doctors, top scientists, and researchers, and when political entities are laying down the law on what your doctor can do for you.
And you might not happen to have a $1000 lying around. Then what?
You guys need to check your privilege.