Paul, Rich et al;
Do you think, maybe, that the way this kind of instruction is presented to those who are squeamish (gender irrelavent) might be the key here?
See, I've been teaching a lot of self-defense lately and one of the things we go over is the use of everyday items as weapons. Well ... a knife IS an everyday item. We use it to slice cheese, spread butter ... a scissors is really two knives scraping together for ease of use and relatively safe, clean cutting. All of us use knives in various fashions just about every day.
I wonder if this perspective might be useful when introducing edged weapons to the reluctant?