A puppy is almost literally a living toy. The word puppy comes from the French word papee , which means doll. And a doll is how we treat it. We handle it, hug it, stroke it, brush it, play with it. It is good that a puppy is cute, as it prevents most owners from killing it when it does the inevitable damage to house, property, and self.
Puppies do harm primarily by biting, clawing, and excreting.
It takes a couple of months to a couple of years to get these three behaviors under control. But most owners go negative at some point in the training process. Traumatized dogs recycle their bad feelings later. Which is why people are leery of adopting previously owned dogs. There were difficulties with our new puppy.