Not often but they are handy if you wear a pack with a waist belt. It drops the sheath enough to get at. Another benefit is the ability to swing out of the way if you fall on your sheathed knife. I did trim the factory "danglers" from my
AG Russell Bird and Trout and my Deer Hunter knifes, then reattached the clip to the tip of the sheath. These are attached to my packs.
butthead