Question about wrecks while towing a 5th wheel

I've wondered about this exact thing as my kids are often in the back seat of my truck while I'm towing the 5th wheel. It kind of bugs me having such limited visibility behind me. Of course, there's really not much I could do anyway in a lot of cases. As someone mentioned, a lot of energy would be taken up by the 5th and truck frames. I envision more injury to people in the backseat from things like shattering fiberglass pieces and whatnot.