The main reason is one of safety which can be accomplished by having house cats. Statistics indicate that a house cat’s life expectancy is over three times that of an outdoor cat (more information). Cats which have been kept indoors all their lives adapt reasonably well to their environment provided that they are given ample companionship and attention. However, such an enclosed environment is far from ideal and a solution which permits the cat to have access to the outside as well as the house is preferable and this is what FeliSafe cat fencing does.