Some breeds as a whole take longer to reach
social maturity (golden retrievers, labrador retrievers, standard poodles),
while others are more open lifelong in general (scent hounds as a group tend toward being dog
social lifelong as a function of how they were bred to work in groups for humans).
While some shepherd pits may get along well with other dogs, there are chances some may not, and this may be attributed to the pit bull's influence, as this breed has a tendency to not mix well with other dogs once it reaches
social maturity.