I would much prefer a good folder to the miniature fixed blades, though. Here is my thinking:
1. The handles will always be large enough for a good grip with any folder with a 3" blade or larger, and the overall length folded will be much shorter than a fixed blade of the same size.
2. Modern folders have improved locks and are strong enough for anything one could reasonably do with a small knife.
3. You can get a quality folder for less than $100.
4. They are very convenient for concealed carry, but are not limited to that. Belt pouches are available for those models too large and heavy for the pocket.
I know that a fixed blade is stronger than a folder, but how much force can I apply with a 3" handle on a 2.5" blade? I'm not saying I'm right and those who want a very small fixed blade are wrong. I'm just stating my own reasons for prefering folders in blades < 4".
That is generally my view on knives with blades less than 4", but I like a little variety.
In 90% - 95% of real world daily carry, if I can carry a knife larger than my 3" SAK, I will carry a 4" bladed folder. Reason - because it slips in most of my pant pockets easily, comfortably and doesn't scare the sheeples. I can access a folder clipped in my pocket and open the blade fast enough. I am not worried about lock failure with the folders I choose.
But, I probably prefer a fixed blade design for most use if given the option. Fixed bladed knife tend to fit and feel better in the hand.
.
