Honestly it's part 35 year old habit and part possibly skewed thinking.Nice Shawn.
I see that many of your knives have sharpening choils. I used to think that these were a must and filed them into many of my knives that did not have them.
Lately I've gone the other way on them as they can be problematic when cutting cord if you're in a rush. I'm going to try going without them for a while and assess. What got me going on this is seeing Howard Clark's knives. Many of his, including the one of his that I own, do not have choils.
My first hunting knife when I was 12 was one of those Schrade 152(?) things with that weird up-swept curve from the ricasso. I hated trying to sharpen that on the basic stones and limited knowledge of a 12 year old. I never could get that part of the edge right. The next one I picked up was some cheap thing with really soft steel, and it didn't take a lot of sharpening practice before it started to look like the Schrade.
That started my habit of putting a choil in if there wasn't one already.
With some of the ones I'm making now, I try to leave the ricasso even with or below the edge a bit to act as a sort of a guard. In my mind, the choil on those makes it easier for people with little sharpening experience to maintain the edge as there is a more defined place to start from.
I definitely see (and have encountered) the issue you mentioned. Knowing more about the different steels and how a good knife should hold an edge, I can see where they wouldn't be as necessary in some that I am making now. So I guess it falls more into habit than anything else.