Resource guarding is a normal canine behavior that becomes a welfare and safety concern when it causes chronic stress or escalates to aggression — and it is almost always manageable with appropriate training.
Resource guarding in dogs is often mismanaged through punishment that suppresses warning signals, making dogs more dangerous without reducing their anxiety. Dogs that guard resources are typically anxious about losing valued items — addressing the underlying anxiety through behavior modification creates lasting change. The welfare dimension for the dog is significant: dogs that must continuously guard resources to maintain access to them are living in a state of chronic vigilance that reduces quality of life. Treatment that increases the dog sense of security around resources genuinely improves their welfare, not just the safety of household members.