It also demonstrates what fishermen actually do when they go fishing, which apparently hasn't changed much in 3,000 years. Apparently, researchers don't understand fishermen. As all anglers know, we don't really care if we catch fish. Look in any fisherman's tacklebox. OK, there's some tackle.
Bottle openers are important in a tacklebox.
So is jerky. At the very start, tackleboxes were probably nothing more than a small animal hide filled with a few trinkets actually used for fishing. It was nice. But during the 20th Century, tackleboxes met a crisis. What fishermen want, most of all, is to get the heck away from the world and have a good time.