My memories of authentic Vietnamese restaurants and home-cooked Vietnamese food involve very significant amounts of tripe, ligament, collagen, tendon, cartilage, and so forth. Those were in fact my close friend&#x27;s favorite parts of every dish.<p>I realize that was only one perspective on authentic Vietnamese food, but those things are <i>not</i> popular in the American diet. So I imagine the only form it can take off is as the Vietnamese equivalent of Panda Express.