Thanks for the feedback so far. Some very good points.

I do admit that she already had a small SAK in her purse and I didn't even prompt that. She also reluctaintly put the Mini-RSK in her purse. She doesn't really care that I EDC a flashlight and a knife, although she does think I'm a little silly to do so.

So, this isn't really an issue of convincing her to carry the knife, but convincing her that it is a good idea. Basically she is just humoring me.

I guess from one perspective, if she ever really needs a knife, she'll become a beliver on her own, but it does seem to me that it would be optimal that she thought it was importaint, or she might leave it out at some point and latter need it. Also, I think it would be more optimal if she carried on her person instead of the purse, but that won't happen without belief of importance.

In general, this is just a mini example of the whole idea about being prepared and how some people think it is "odd" to prepare in this way.

Again, thanks for all your thoughts so far!

-john