The debate over indoor versus outdoor access for cats involves complex welfare trade-offs between behavioural freedom and safety risks.
Both fully indoor and fully outdoor keeping present welfare challenges. Outdoor access allows cats to express natural hunting, territorial, and exploratory behaviours but exposes them to traffic, predators, disease, and fighting. Fully indoor cats are protected from these risks but may develop stress-related conditions without adequate environmental enrichment. Supervised outdoor access, cat-proofed gardens, or well-designed catios provide a welfare-positive middle ground for cats in high-risk outdoor environments.