I see the humor in your "joke" [no smilies needed], but you must realize that when I made MY apron, it was one of the 1st things I actually made from scratch which required a bit of planning and ordering enough materials to do the job. At that time, Phillip was most likely still in grade school and YouTube hadn't hit the spotlight, in fact it was well before the "internet" was developed! Now here is the "rest of the story", I borrowed a shop apron from a woodworker friend of mine and came up with a set of "measurements" based on how HIS factory apron was built and how I wanted MY apron to fit. Nothing fancy, just a few adjustments here and there to have my apron fit like I wanted HIS apron to fit on me. That was when I was a teenager and wanted to make some horse tack, which I found in one of the very BEST books on leather braiding by Bruce Grant.
Now I am 81 years old, retired since 2008 after a lifetime of owning and operating my 2 businesses, and I still LOVE the smell of leather! And I am still a "student" of leather crafting since I picked it back up about 11 years ago. I am still a "hobby" leather crafter, but now I am building holsters, sheaths, other tool covers and holders as needed in my leather shop, and I have turned to using exotic inlays and special leathers for my exterior covers on pistol holsters and knife sheaths, wallets, business card holders, and any other item which someone may need built as a "custom" made item. I don't own a sewing machine, preferring to saddle stitch almost all of my products or using other stitching styles including box joints and butt joints for making things just a bit above the normal level of commercial products in today's retail world. And I am going to return to my "Encyclopedia of Leather Braiding" [a treasured 1st edition hardcover BTW] and pick up on more modern braiding techniques using kangaroo skin instead of latigo lacing, which I had made from "rounds" of veg tanned leather and hand skived on a homemade skiving knife, one of many handmade tools which I learned to build from seeing how the "old timers" of MY youth made their tools.
And in closing, it is the wise man who checks out the facts of a story first, before making assumptions. Otherwise one may find himself the brunt of the old saying sometimes attributed to Abraham LIncoln, "Better to remain silent and be thought a fool, than to speak and remove all doubt".