The question of whether cats should have outdoor access involves balancing cat welfare needs for natural behaviour against wildlife predation, road mortality and disease exposure risks.
Cats confined indoors without adequate enrichment experience chronic frustration, reduced activity and obesity-related health problems. Outdoor access allows expression of natural hunting and territorial behaviour but exposes cats to significant mortality risks and causes measurable wildlife harm. The debate is not binary: enriched indoor environments and catios can provide welfare benefits of outdoor access with reduced risks and wildlife impact.