Why do people think it is wrong...?

its true, cats can be either indoor or outdoor cats...i think it depends on the way you raise them. but if you do raise them as indoor cats, it can be dangerous to let them out. not only will they get lost, but they wont be able to survive outside. conversely, outdoor cats cannot stay inside. people think its wrong probably because they dont own cats or know anything about them..they just assume that cats are meant to be outside or have an outdoor cat. dont worry about those people, do your own thing. if youre really worried, call your vet to find out. hes much more qualified to explain. people are always gonna hate.