You can let a cat out at night and it always comes back. Cats are never late for dinner. You can put a name tag on a cat if it shows signs of wandering. Cats keep your feet warm. Cats are furry things that are nice to look at.
Cats lick their own private parts.
The only bottle cats hit is the milk. A cat always hits the litter box. Better chance of training a cat. No matter what your cat drags into your house, you don't have to pretend you like it. You never have to spend time with your cat's mother.