Jack asked, "How do I even convince my wife to carry a flashlight? She doesn’t even think she needs to have one of those let alone thinking about protecting herself from bad guys!"
Mabel says, "Start by giving her a small flashlight. Anything from one that goes on her key ring to a small one to slip in her handbag. If you discover (by asking) that she hasn’t used it after having it for awhile, wait for that perfect time when you are out and about together when a flashlight would be useful and ask to borrow it. Tell her how glad you were that she had it for you to borrow! (Ignore the one in your pocket!) It is a start for her to learn about what is "useful" to her. You are not the only one Mabel has heard this from!