I believe anytime a young pup does something right naturally, you as the trainer have a leg up in training him, over the dog that doesn't. That doesn't mean you don't reinforce the skill through training, it's just easier if the pup is already doing it right. For example my latest pup naturally, from age seven weeks, ran right out, picked up an object or bird, and ran right back to me. That just gave me a leg up over the pup who runs out there picks up the object and plays "keep-away". We all know there is going to be a lot more training ahead for the pup, just one thing that might be easier than otherwise.