Dogs are considered man's best friend, and we totally agree with that, because they are loyal and honest with his human friend, as well as are a great babysitters for little kids. But the cat's purring may be a great companion for your child when she is not considering a cunning plan to conquer the world. Although cats are excellent Pets, make sure your cat is friendly, and your kids know the boundaries, going through which you can get a nasty scratch.