It depends on the dog and your situation. I have never and will never allow my dogs to be outside when no one is home. A concrete fence would probably solve most of my issues (snakes, tree limb breaking fence, neighbor kids harassing or even poisoning). I'm almost 60, have had exactly zero dogs who loved being in their crate (except my first rottie who wanted it for sleeping in, gate open.. she didn't NEED a crate from the time she was about 6 mos old). But if you give them good quality toys and chews, dogs generally chill out. They sleep up to 18 hrs a day so I consider a crate a good safe haven. My basenji is fine left in my bedroom now that she's grown. My 2nd basenji didn't destroy things, she'd pee on my bed.. so she got crated. My first was incredibly dog aggressive, so the rotties and chow ran free, she was crated when I was out, slept with me at night (as did/do the other 2).