I think the issue is about standards or morals of a human being or a society or a family. Yes, we can do whatever we want, where we want, when we want, etc. It's not a question of religion, sex, race, breed, or anything else but what our morals are. Each of us responding to the topic here IS right in his own way because that is his opinion and that is what he believes. If you believe that your daughter can marry a German Shepherd, then so be it. If that norm is acceptable to your family or society, then so be it. For me, I don't think so. There's no argument here is there?