Cats that don't know any better can live inside just fine. But I adopted a cat from the shelter that was only allowed to go to a place where he can go outside. And he REALLY wanted to go outside. Usually you have to keep them inside for at least 6 weeks to accomodate before you allow them outside. He escaped through a tiny bathroom window after 2 weeks. And he came back the next morning wondering why I was stressed out. Since then I let him outside. Since then, he also became a lot more chill inside. No whirlstorm on my bed at 4 in the morning, no attacking my feet out of boredom, and he generally seems a lot calmer. Keeping him inside would drive both him and me crazy. So do we have to euthanise all cats like him? Cause locking them up inside is just cruel.