"... age of the traditional pocket knife, dropping it in the pocket and letting it sink to the bottom where I always knew where it was."
I agree with this, including belt sheath folder & fixed blade belt sheath designed knives, however the 'bottom' of a pocket is Not very accessible, depending upon several instances. Especially if you
want/need it accessed quickly, and don't want to 'dance' around other items in the same pocket
I also 'always' know where a clipped carry knife is.
*I appreciate both traditional knives, as well as modern pocket clip designs, which, the latter offers several carry options, as in Left/Right, Front/Rear pockets, in waist band, shirt pocket or the pleat, and not to omit the endless options to clip it to gear bag pockets, webbing, etc.
* I also find that if one desires a traditional or clipless knife carry and does not wish to scratch /
dull the handle scales, bolsters, etc. A simple pocket 'slip' is an excellent option, leaving plenty of pocket space, & I've found that depending on the slip material, can indeed remain in a vertical position, as another member complained about.
..."I actually tried a modern folder clipped to my pocket. After I got tired of it snagging my seatbelt, snagging branches on bushes, scratching the car and getting in the way of reaching for anything else in that pocket, I ditched it and went back to dropping my pocket knife in my pocket."
* A properly designed & carried 'pocket clipped' knife
should Not be 'snagging & scratching' everything,IMO
And likely just a matter of getting used to 'where' the
knife is.
"I also don't see the wisdom of advertising to the world what I am carrying and exactly where I am carrying it."