Humans love cats in large part because of their innate grace, because from the time they are kittens they already seem to know how to move, how to make the best use of the space around them.
Humans also love dogs, in large part I submit because of their acquired grace, because when they are puppies we can often see that they are clumsy, that they charmingly bumble about in space. Note the troubles of the fellow shown here. We love dogs because we can see them learning to be graceful as they grow.
Humans become "cat people" or "dog people" depending on which sort of grace we find most appealing, the innate or the acquired.