The decision to keep cats indoors, outdoors, or provide managed outdoor access has significant welfare implications that must balance individual cat needs against safety and wildlife impacts.
The indoor versus outdoor debate does not have a single correct answer because individual cat welfare needs vary. A cat with high activity needs and outdoor history confined to a barren apartment may suffer more than one provided with rich indoor enrichment. But the risks of outdoor life are real and cause enormous preventable cat suffering and death annually. The evidence-based approach is to provide the richest possible indoor environment, supplemented with managed outdoor access where safe, while weighing the individual cat's needs.