The only canine DNA projects that are worthwhile at this time are those that are being done for research. For example, there’s one now for Golden Retrievers that collects the DNA of participating Goldens as puppies and then follows their health and development over their lifetimes. The idea is to identify the genetic markers asociated with diseases (e.g., cancers) and other problems.
I certainly agree with you-information like that could go a long way to prevent over breeding/breeding that reproduces life-shortening traits for the sale of perfect breed confirmation and looks. Maybe even put brakes on those AKC breeders who operate puppy mills for the petstore trade supplying the top listed breeds-those places are doggie hell...
I don’t get why knowing what breeds are in your non-purebred dog’s ancestry-and both my non-purebred shelter cats are convinced it is just going to make the dogs breed snobbish...