Some of them would work out okay for casual carry use, but most handles are not thick enough for good purchase, and the blades are likely to be very thin stock. Of course, they would slice well, but kinda of hard to get 'em to fold, and one carried in a sheath would likely be a 3-4" paring knife which is better off saved for peeling potatoes. A blade any longer than 4" is obtrusive or illegal or perhaps both. Plus, it would look "silly." (my opinion only)
I wouldn't consider one for anything considered moderate or heavy-duty. It would likely bend or snap, depending on heat treat and blade-steel.
I say...Keep 'em in the kitchen. It is more probable, AFAIK, to see folks use heavier-duty folding knives to double in the kitchen also. I think something like a Spyderco Stretch or Caly 3.5, particularly in ZDP-189, or even a BenchMade 710 in D2 or M390, to be an excellent "double-agent."