How do you intend to protect yourself,your family and your property! I don't particularly have any problems with guns, knives,etc. Other than being worried about them being in the wrong hands( felons, minors, those who think they know how to use them, but don't). If for no other reason, than to learn self control, discipline and a sense of self worth, I believe everyone should learn some form of martial arts.
I started Tae Kwon Do, when I was 16 and received my 1st degree black belt when I was 18. I can't begin to describe the feeling you get, when you have the skills and knowledge to defend yourself. Now, I don't mean that as bragging in any way, shape or form. Big difference between being self confident and showing off. Over the years, living in another state, living life, injuries, I didn't test again until about 4 1/2 yrs ago, for my 2nd degree black belt. I am now 50 yrs old, so nobody is too old to get involved!
The point I'm trying to make, is you can't depend on someone else to save or help you, you need to be able to help yourself. A couple of examples, especially in our everyday modern lives: you just got off work(and this applies to men as well as women, think of the "knockout game" that's been so prevelant) and your walking across the parking lot to your car. You had a rough day and your just  thinking about getting home, starting dinner, your scrolling thru your messages on you cell, when, BAM , someone --fill in the blank. That quick, you need to pay attention to your surroundings, anything else can wait. Bad guys look for inattentive people, you make it easy for them, as opposed to someone who is constantly looking around, is walking confidently. Check for vehicles parked close to your own, you don't want to get grabbed and thrown into their car. Look under your car, who remembers, years ago, when the "thing" happening was guys with box cutters, slicing the legs and feet of people from under their own car? I also don't mean, that you  need to be a walking advertisement for someone on the verge of a nervous breakdown! Just think, be aware, look at people who are walking by, alongside or coming towards you. Usually your gut instinct will let you know if something seems off, if we take the time to listen. Be careful, Mrs. Prepper