Well we can compare folders to small fixed blade scrappers and busses. While no folder is truly a hard use knife, IMO, most of us just use our knives in daily life just to cut things like packages containing small fixed blades we seldom use! I would love a Scrapper folder or Swamp Rat. Look how much more compact they are than their fixed blade counterparts.These are just a few of my folders. As you can see, most are not "high end", like Sharp's beauties. I do have a Benchmade Skirmish framelock that is pretty rugged, but a bit heavy and bulky for my pocket.

Once opened up, they are about as big as the Busse Meaner Street or SS4.

There is no way they are as tough, but they will cut.