Of course it is. Cats aren't people. Mine are front- declawed, and go in and out. They don't stray far, but they love to climb trees and catch prey (that they bring me as gifts). Then, when they're tired, they come in and sleep. One's over 15, and one's 11....so it's not like I've shortened their lives. Of course, we're in a semi-rural mountainous area, and I wouldn't recommend this in town.