Horses are highly social animals that evolved in herds. Isolation causes significant psychological suffering, and providing appropriate social contact is a fundamental welfare requirement for every horse.
Equine solitary housing is one of the most pervasive yet underappreciated welfare problems in horse keeping. The practice of stabling horses individually for management convenience directly contradicts their biological need for continuous social contact. Isolated horses commonly develop crib-biting, weaving, and other stereotypic behaviors that reflect chronic frustration and stress. Even when horses are stabled individually, providing adjacent stabling so horses can touch, groom, and interact reduces isolation significantly. The welfare benefit of group housing and turnout is well established, and the management challenges are real but surmountable. Horse owners and facility managers who understand social need as a fundamental welfare requirement make better housing decisions for the animals in their care.