There have been hundreds of thousands...probably millions...of words written condemning folding knives for survival purposes. But the lockback knives...or knives with no lock at all...draw the most ire.
Buck Prince Model #503 (2 of them)
Buck Knight Model #505
Camillus "Demo" Knife Model #1760
What did we ever do before the Liner Lock, the Frame Lock and other locks like Benchmade's Axis Lock? Well, we whittled are way to snare building success with knives like those pictured above, that's what we did!
We cleaned squirrel, rabbit and various types of squab with them, we cleaned deer with them. Some of us even cleaned some snakes with them. We cleaned and scaled fish with them. Cut cord and rope, did all of these marvelous things that a person in a survival situation would have to do.
To hear people talk now, "surviving" with some pocketknife just started to be viable because of the invention of some new lock on a folding knife or some new wondersteel.
Like the additions of "safeties" on firearms that already have safeties, you can't make a tool idiot-proof. It's not that I don't admire something like a Sebenza (Frame Lock) or the Doug Ritter Benchmades (Axis Lock) because I do. I value them highly as a matter of fact!
But I also value these simple tools...highly.