Outdoor cat access involves real welfare risks including vehicle collisions, predation, infectious disease, and injury, requiring evidence-based assessment for owners to make informed decisions about cat management.
The evidence on outdoor cat risks is clear: outdoor access significantly shortens cat lifespans through multiple pathways of acute and chronic harm. Vehicle collisions, fighting injuries and disease transmission, predation, and human-caused harm combine to reduce average outdoor cat lifespans by 70-80% compared to indoor cats. This is not a minor risk difference but a dramatic welfare difference in expected lifespan and health quality. The welfare case for indoor living is strong when adequate environmental enrichment provides the behavioral opportunities that outdoor access would otherwise supply. The individual welfare benefit of outdoor freedom must be weighed against these substantial mortality risks, the wildlife welfare harm from predation, and the public health concern of disease and environmental contamination. Informed owners make this decision with full awareness of the evidence rather than assuming outdoor access is simply a natural right.