What grooming requirement is non-negotiable due to the presence of feathering on the legs, ears, and belly?

Answer

Consistent grooming to prevent mats from forming quickly

Due to the length and feathering, consistent grooming is non-negotiable because the feathering is prone to collecting debris and forming mats rapidly if neglected.

What grooming requirement is non-negotiable due to the presence of feathering on the legs, ears, and belly?
DogbreedhairFurBoykin Spaniel