I was aware of the people of England believing that cats NEED to be outside, And I am not trying to change anyone's beliefs, But I would just like to say (and not in a demeaning tone) that I have several cats that were strays right off the street and they do not appear to suffer one bit by now being kept indoors. As a matter of fact, they actually get startled by the traffic and other outside noises when they are near the closed screen door.