So are cats and humans have a sick obsession with cats. Cats have special unique diseases only they can carry and pass to humans. And cat excrement is also unique in bringing unique bacteria carrying new diseases that nowhere else they can be found.
Cats are vermin, bigger vermin. But vermin none the less and no. Cats don't serve any purpose. They're not loyal, they don't really care about you, and they're abysmal mouse hunters. Owls and foxes are better at hunting rodents. And frankly Terrier Dogs are superior mouse killers along with Minks. None of these animals play with their prey. They kill and eat or kill and that's it, KILL. Cats are garbage.