I mean, there are giants. Personally, I'd get pissed off to find my family murdered by a couple of skeevers after spending too long away from home. It just seems tedious. Why is my home the only place in skyrim that gets attacked by monsters randomly? (not including the one dragon per city)
That's what I am afraid of as well. Of course, children are always essential, but like the trailer said, you can get a number of followers to guard your home. Although, putting my trust in NPCs to guard your home that can be attacked, not so sure.