Whether to allow cats outdoor access is a welfare question that balances the behavioral freedom benefits against injury, predation, disease, and wildlife impact risks.
The outdoor cat debate involves genuine welfare tensions. Outdoor access enables natural behavioral expression — hunting, climbing, exploring, and social engagement with the environment — that improves psychological welfare. But outdoor exposure dramatically shortens lifespan through injury and disease. Indoor-only cats may have longer lives but can suffer from boredom, obesity, and behavioral problems if inadequately enriched. The welfare-optimal solution for most cats is controlled outdoor access: cat-proof enclosures, supervised outdoor time, or leash training that provides behavioral benefits while managing risks.