I’ve practiced a lot of different martial arts including Judo, Karate, Wushu/Kung-fu and Sanda (Chinese kickboxing) but the most effective one by far is Krav Maga. Krav Maga was initially developed as an unarmed combat system for the Israel Defence Forces. Krav Maga is very useful from the beginning and it doesn’t involve any unnecessary show off moves.
You’ll learn to defend yourself against real world attack scenarios such as: knife threats, firearm threats, strangling, multiple assailants, hits, kicks etc. You’ll learn how to avoid the situations and also how to get away from them. I’m only at the first level and I’ve already learned more useful things than from any martial arts before. I also had to unlearn things I had learned in Karate so that my kicks and punches are really effective and fast.
Krav Maga is something you should learn no matter what your situation is. When I have kids I will put them in the youth group. This is a skill I think everyone should know to be able to protect themselves and their loved ones.