Every source I can find indicates that, on average, strictly indoor cats live much longer than indoor/outdoor cats who in turn live much longer than strictly ou

Every source I can find indicates that, on average, strictly indoor cats live much longer than indoor/outdoor cats who in turn live much longer than strictly outdoor cats. This is absolutely true. I had a cat that refused to stay indoors during the day. He was constantly getting injured in fights with other animals (mostly not cats, I believe). An infection almost killed him, except we were willing to plunk down the money to get the wound attended to and for the antibiotics. Wearing that cone of shame was the worst 3 weeks of his life.