I think if you go into GP you'll really understand where the frustration comes from.
I really respect good breeders. I had a shar pei patient maybe two months ago where the owner's mother was the breeder and very obviously dedicated to the breed, knew information about the line, we had a really great conversation about shar pei fever (she had a FUO and it was on the differentials, but we both agreed things weren't really lining up for it to be the right answer) and those are conversations and breeders that I enjoy. Because they love their breed, know their ****, and yeah maybe they're a bit kooky but kooky people can be great.
The problem is that since then, I've probably seen 5+ new puppy visits with obvious breeding and husbandry deficits, crap for recommendations in their "contracts," and the breeder trying to dictate diet, vaccines, etc. And I only work 1 day/week in GP right now!
So what's an acceptable ratio of crappy:good breeders before I can just start telling people, at baseline, to take everything their breeder says about medicine with a huge grain of salt? Because there's a whole lot of chaff with the wheat in real world GP...