Cats are not naturally group-living animals. Multi-cat households often fail to meet individual cats' needs, causing chronic stress and welfare problems that owners frequently miss.
Multi-cat household welfare is frequently poor, largely because owners assume cats will "sort it out" or misread cohabitation for compatibility. Cats living in a state of low-level tension — where one cat controls access to food, litter trays, or resting areas — experience chronic stress that increases disease risk and reduces quality of life. The solution is resource multiplication and distribution that allows each cat to access necessities without encountering rivals. Vertical space, hidden resting areas, and separate feeding stations distributed across the home can transform the welfare of a stressed multi-cat household. In cases of genuine incompatibility, rehoming one cat is sometimes the most welfare-compassionate outcome.