I don't think we should enslave ourselves to an acronym (EDC). Also, I choose to view the term as "everyday carry" rather than "every day carry." Everyday is an actual word, which just means normal, routine, ordinary, nothing special.
So with respect to pocket knives, the term means to me, "a general purpose knife carried for those little daily cutting tasks you routinely encounter." As opposed to a special purpose knife that is suited better to specific tasks. A hunting or fishing knife, for example, or the myriads of special purpose kitchen knives.
You don't have to carry the same knife every single day for it to be an "everyday" knife.
So, now that I have defined my terms

, I get where the OP is coming from. He is in that self-analytical angst stage of knife ownership where he has perceived the irreconcilable conundrum of wanting to carry the same knife all of the time, and yet wanting to have lots of knives.
There are a few ways to resolve the cognitive dissonance:
1 - Pick one, stick with it, quit buying new ones, quit reading knife forums.
2 - Go ahead and carry lots of knives, accepting that you will never get to have the one-knife bonding experience.
3 - Realize that you are actually, in fact, a knife collector. Have a small pool of users, and buy display cabinets for the others.
Or you can go in cycles of acquisition, realization, sell-off, regret, and then start the cycle again with a fresh acquisition phase. At some point in one of the cycles you will pick one of the stable conditions, or you may keep cycling through until change of financial situation, relationship factors, or your death will end the cycle.
I am personally trying for a middle ground, along the lines of option 3. I have one knife that I do truly carry every day, and I supplement it with other knives from a small pool of users. So that means I carry 2 knives most days. One of the benefits of traditional knives is that they are small and easy to carry, so having two is not an issue for me.
In the #2 slot, I have so far this year been picking one and sticking with it for months at a time, before switching out to something else. So far that has meant I have only regularly carried 3 knives this year (other than for occasional specific purposes): The #1 knife carried always (Vic Alox Cadet) and two others in slot 2. At that rate, I might be able to actually give every knife I currently own one turn in my pocket in my hoped-for lifespan. So eventually I am going to need to get some display cabinets, or go through a sell-off phase. Or let the estate sale take care of it for me.
