[How can the epitome of a pocket knife not also be a working tool?]
In my opinion, a pocket knife is a jack of all trades that is used as a "get by" / "make do" tool. So, not an "intensive" / "extended" use tool. Everyone got his own everyday tasks, so choose the pocket knife suited to them. I love the flat profile of the Douk-Douk and it matches my needs perfectly. I value the strong purchase of the Opinel's blocky handle but I don't use my pocket knife for tasks requiring that strength, so I'm out on the Opinel.
This. A pocket knife, any pocketknife is a make-do tool. It's used to make cut now and then, and may save as a food prep tool while out someplace.
My old man once told me something when I was a kid, and it kind of stuck with me. He said a pocket knife is something you carry around a lot, and use it a bit now and then. I know that fits my description. I don't work as a lumber jack, I don't whittle for a living, I don't skin buffalo, and I don't do heavy pruning in the yard with my pocket knife. So what does that leave? Opening packages, cutting jute twine in the garden, breaking down a cardboard box for the recycle bin, slicing a sandwich in half to share with the better half, and other light duties. Having used both the Opinel and the douk-douk a lot over the course of 50 years, I eventually discarded the Opinel as too bulky for pocket use except for the little number 6's which are too light built for much rugged use.
For me, and YMMV, the flat profile of the douk-douk and the Mercator K55 makes them far better carry in a pocket. And lets face it, that's where a pocket knife lives 99% of the time. It sits there until we need to cut open a package, sever a piece of rope, slice a sandwich or a slice off a loaf of nice fresh French or Italian bread. Once in a while I'd whittle a hot dog stick for the kids, and then later, the grandkids. I used both Opinels and Doug-douk's and didn't really notice much difference in effective cutting or handle discomfort. Yes, if you lean on it for extended time the douk-douk is a little thin, but hot spots all over??? Come on. Maybe you need some work gloves.
I've never been an office worker. I've spent my whole life as a tradesmen. First in the army engineers and lots of construction projects in all kinds of not-so-nice places ranging from cold wet forest in winter Germany to North African desert at Wheelus Air Force base, to camping in the Great Smoky Mountain National park. I never had a douk-douk fail on me. Yet I can't say the same for the Opinel. I've had a handle crack right at the skinny little fingers that the blade pivot is supported by and the whole knife was rendered useless. My friend Danny broke a number 7 right off at the step in the wood where it was turned down for the locking ring and inner bolster.
While stationed in Germany, we used a lot of local labor for the construction grunt work and the Mercator was dirt cheap there in 1968. Most the German guys working on the job sites used the ever loving dog poo out of the K55's and I never saw one break. At Wheelus AFB Libya, we were extending and beefing up runways for heavier aircraft. The local contract labor were all these Arab guys who used the ever loving dog poo out of their douk-douks, and I never saw one break.
Point of all this? If I'm looking for a rugged work knife, I want things riveted with he rivet set in real metal. No skinny wood fingers for me. I've had then fail, and I'd rather have a little handle discomfort than a knife that can't take pressure. Douk-Douk- Mercator, Buck 110, military 'demo' knife, Victorinox pioneer, all have the metal construction for heavy duty working over a long period of time. And the douk-douk can be put into service immediately with no melting wax, sanding handles, tweaking locking rings and whatever.
I like metal in my knives and my guns. I've swore off Opinels and Glocks forever.