Actually I think in many cases the vets don’t know about them either. And I suspect that most people who can afford to, end up spending more at the vet, because their standards for maintaining a pet’s health and extending its life are raised by all the info on these lists. A large number of the new joiners on the Feline-CRF-Support group have taken their cat to the vet, and had the vet tell them there’s really nothing that can be done, and that it’s time to put the cat to sleep. Some of these cats are still living happily several years later, with their owners having spent a good deal more money at vets than if they’d just put the cat to sleep when the vet advised it.
I can’t tell you how many vets seem to give dogs or cats no chance when that isn’t the case. I saw it time and again on the Cushings list and people would come on and say they have a vet who doesn’t even want to treat, says there is no hope... makes you wonder why some go to school to become vets.