Don't know, I suspect it's in our genetic code Personally, I'm a proponent of folders and smaller fixed blades as survival knives because survival is usually come as you are and I rarely if ever see anyone actually carry one of the big wilderness blades. The typical survival could just as easily be a SAK or a Case Stockman. If it's a Victorinox Farmer with a saw, you might be in better shape than carrying a BG toy.

My typical woods carry is a locking folder, an SAK and a small fixed blade. The big fixed blade knives typicaly sold as "survival knives" are too much to casually carry every day. However, the fixed blade knives I carry will not fall apart if I beat on them because I view them as tools. Gerbers warranty is laughable when applied to a survival knife.