drop bear
Sr. Grandmaster
You use the word "shouldn't" several times. I don't really like that word. It is extremely subjective and not very helpful to discussion.
But in short statistics are entirely important because it informs the degree of effort that is reasonable. Insurance sales people might believe that everyone needs $500k life policies. That doesn't make it a wise expense for everyone.
If you are a drug addicted transient, you are at high risk of assault. If you are a 20 year old, female, college student, you are at realistic risk of sexual assault. If you are cop or work in a social security office or in a homeless shelter. And in these cases, training might help. What training would actually help will vary and in most cases, physical training is going to be of limited use.
I have a lot going on today so this may not make a lot of sense. I will try to clarify later if needed.
the crockwise rap approach.
As opposed to carrying a gun or something.