Some breeds require greater grooming than others; lengthy-haired dogs pretty much need widely used brushing to ward off matting
https://www.tumblr.com/classyvigilantemutant/805925742424768512/essential-supplies-every-new-dog-owner-should
Some breeds require more grooming than others; long-haired canines characteristically want established brushing to avoid matting and tangles of their fur.