Why are cats so soft?

Soft fur comes from nutrients. Minerals and all that stuff make their eyes gleam and their gums pink and their fur soft. Sometimes it is just inherited that a animal's fur is ruff. Like in Alaskan dogs and animals like that. But in animals like bunnies, fur HAS to be soft. If it's fur is not soft, that bunny is sick and needs medical attention for it is malnourished.