I have owned a few dogs in my life. What you say, might be true. However, even within breeds there are just so many different type of dogs that some are just fine with being on the couch all day (within reason of course). Some other are not and become destructive. Not only that, some dogs hate being around attention all day and need some time to be able to retreat and left alone. So, what I am trying to say, that things are far more complicated than you are stating.