Love these posts.

Wanted to add that much of what you are sharing here would be (in the US) found in martial arts ending in jitsu. The Do endings typically revolve around sport martial arts which are not for the most part practical in self defense on the streets. Many of the styles being taught in the US are geared towards sport and the selling of belt levels, usually requiring contracts to be signed as well for extended periods of time.

There are hard and soft martial arts, and after practicing both years ago, I wish I had focused entirely on the softer forms of jitsu and not the harder style Do that I began with. My last instructor (soft style AikiJitsu) many years ago, used to say that once you were comfortable in moving your body, you could effectively fight from any position, even upside down. Hence so much focus at the beginning on learning to roll, how to fall etc. I was amazed that within a few months I was mastering falling, flipping and a powerful kick in the same fluid motion. The impediment was fear, as its not natural to do such things until we practice them. Before I took what is considered a softer style, I was arrogant in my belief it was all power and speed coupled with proper technique. While those things are all powerful, learning to use energy flow to ones advantage instead of brute power to overcome was eye opening, as well as humbling. Opponents I never had a shot against due to their advantages in the brute techniques were suddenly beatable using softer styles designed to harness that very brute force.

I would also urge anyone reading this post to learn as much about pressure points. They might be necessary to force your attackers energy away from you if they do trap you to the ground. They are numerous and easy to attack due to this. Muscle separations are an excellent example of this.