The development of grooming claws has come from the idea that as our nails became smaller and smaller, we can easier groom ourselves and each other. And that was the reason for more social bonding. “Nail care isn’t just grooming anymore — it’s self-expression,” writes Nails magazine publisher Cyndy Drummey. This is the easiest way to find a strong connection with people you don’t know so well or to cement a bond you already have.