Maybe only a fraction of farm workers understand the entire process at their farm, i.e. some drive tractors, some stick milking machines to cow udders, some are

Maybe only a fraction of farm workers understand the entire process at their farm, i.e. some drive tractors, some stick milking machines to cow udders, some are itinerant workers following crop harvests, some fly crop dusters, and none of these groups would be able to run the entire farm on their own. Even so, it seems a strange thing to worry about.