Cats like their own company and should generally be kept on their own. Living with other cats is a common cause of chronic stress which, in turn, can cause all sorts of health issues for your cat. It is sometimes possible for cats from the same litter to live together.

Is it cruel to have one cat?

No, it is not cruel to have only one cat except if you are constantly leaving your cat alone for long periods. If that is the case, having a second cat may be preferable. Your solo cat deserves your time and attention if you are at home and you should provide her with toys to keep her active and busy if you are away.

Do cats prefer living alone or with other cats?

Cats often prefer to live alone so you need to think very carefully before getting another cat - it could compromise your current cat's needs. ... Cats who aren't friendly to one another don't like to share (e.g. food, water, litter, bed) or to pass each other closely.