Human are not inclined to use keyboard

I have tested hundred of them, and I never got to go through any formal training or any online practice.
My typing speed is about 35 wpm, I usually uses my thumb and my index finger, once in a while, I may also use my 无名指 and last finger.

After all this year of typing and clicking, I have become a natural user of keyboard, and I have to make myself believe that keyboard is one of the greatest invention, although my English is still at the elemantary stage.