Too much the old timer But I understand
I sharpen hunting knives, hatchets, pocket knives, lawn mowers, Thanksgiving turkey knife, broadheads, and an assortment of other items.
Used small knives to gut and skin out an animal. Carry a small stone to sharpen up knives in the field. And a very small swiss army knife as a backup to my pocket knife and hunting knife.
I kindly remember the professional knife sharpener who gave me my first and best instructions. Him and the butcher's I've known.