Our almost 3 yr has lost most of her interest in walking. Up until last summer, she & I would walk every morning. Even during the snow periods of Maryland, she looked forward to our walks once walkways were cleared. Last summer the cicadas came and she HATED the noise. Wanted to go out on the deck very little and refused to go for walks. Would even run away when I went to get the harness and leash. Now it is spotty, but she is not usually interested. She will go in the afternoon with my wife and me. She is much closer with the wife, but she still couch snuggles and follows me around. It is puzzling. She is very noise sensitive.