It is interesting to see how the technology of eating has emerged. Petroski points out that because of the way chopsticks work, meat is cut before cooking in Eastern cuisine. In Western cuisine, where you often have access to a sharp knife (if the table knife doesn’t suffice), the meat is cut after it reaches the table. Similarly, the initial knife on the table has a blunt edge and no point…a much different tool than the steak, or chef’s knife which in finer restaurants is brought out when you order a meat dish. Eastern chefs, however, still have that pointed sharp knife…but it never leaves the kitchen. In addition, in many parts of Asia (such as India) many people don’t use utensils at all.
I've always thought form follows fancy. Whatever the creators fancy will determine the form. If they fancy practicality the design will be practical. If they fancy whimsy then the design will follow. It's in the eye of the creator and their relationship with the creation.