It took a few years for Kaylee, raised from a puppy, to be allowed out while we were gone. We left her loose while we slept about six months earlier. About eight months before we trusted our adopted adult boy. The crates are in the basement now, because I wanted to reclaim the living room, but we still use them. Once or month or so we crate them for a while just to keep them used to it. It was nice to be able to do when our AC went out over the summer; it was cool still in the basement so we kept them there.