Puppy Socialisation It would be impossible to over emphasize the importance of puppy socialization. As with any animal (humans included!), if socialization is not adequate in the formative months/years, the animal will grow up lacking confidence and self-assuredness. In dogs this can often lead to fear biting or a growly, snappy or wimpy dog. So if at all possible – get your puppy to a reputable puppy class as early as possible.