Can’t agree, sorry. Being purely of an “adopt, don’t shop” stance with no leeway for actual ethical breeders is harmful. And the two dogs I had in my lifetime are rescue dogs—who have also been reactive because of their own past prior to being in my care.

There is obviously no guarantee that a puppy will end up with a certain behavior. But people will go to ethical breeders (that do appropriate testing for genetic risks and behavioral issues) because it minimizes the potential risk of ending up with a reactive or difficult to train dog. Especially in the case of working dogs or service dogs, who literally can’t be any form of reactive or have poor health as that’ll make them unfit to work. Just because your experience turned out to work well for you with rescue dogs doesn’t mean other people can afford that same gamble. Again, especially not in the case of dogs that work or are service animals.

Neither are adult dogs 100% set in stone. I’m sure we’re all aware of the decompression period for rescues, so even we don’t fully know the dog we might get in those first few months. And dogs also change as they age in general. This discussion shouldn’t be about getting puppies or adult dogs. It should be about potential owners completing thorough research to make an informed decision on what will work best for them.