Failures would be when you have puppy buyers that are not happy with their puppy for one of many reasons, the pup is too soft; the pup is too aggressive; the pup has a genetic problem -- hips, heart, elbows; the pup is afraid of people; dog reactive; isn't easy to potty train, and the list goes on and on.
I think a new breeder is likely to make some mistakes with the pups, maybe with the paperwork, maybe with the people. I mean, once the puppies are whelped, it is pretty much up to the bitch for a couple of weeks, but then, the breeder really needs to get her hands on those puppies. try different things, expose them to some other people. They may not know all that.
But the biggest fails I think come from matching puppies to owners. A hard, independent, high energy, high drive pup might be great for police officer who already has a malinois, but it might not be the right dog for the widowed grandmother whose young grandchildren visit every 3-4 months. That is extreme, and of course life isn't black and white. Even with eight middle of the road pups, there may be one that would do a lot better with a less permissive owner, and another who would have done better if the owner wasn't a CM fan.
Experienced owners tend to go to experienced breeders. And inexperienced owners fall to the inexperienced breeders, and it just seems like the consequences of this tend to be a double whammie.
And yet, as I said, most probably have fewer fails than successes. Don't go expecting problems. Love your puppy. Train your puppy. Make him the best dog you've ever had.
I get it now
Thank you very much for your explanation.