Updated: Jan 7, 2020
For awhile now I've thought that Martial Arts help create nicer and more compassionate people because through training martial arts you learn the reality of violence. We all grow up thinking what violence is through TV, movies and video games, but if you've never experienced it firsthand you won't fully understand the consequences of violence. I'm sure there are outliers out there who only get more violent from martial arts, but from 12 years of teaching martial arts I'm quite certain more people come out of training kinder than wishing harm to others.
It's important to know through martial arts the practitioner experiences the reality of pain of fighting from sparring. No sensible person would want to seek that type of harm for themselves or others because they build sympathy for those have been harmed in fights as they know what it feels.
Like myself I believe most martial artists would rather seek a non-violent outcome over anything else. Martial arts teaches you the fragility of life and how important it is to protect it and be humble for what you have in life.
Violence should only be used if there are no other options left.
Here's a short video from a podcast from two of my favorite voices in MMA, Joe Rogan a former Tae Kwon Do practitioner, comedian, UFC commentator and Firas Zahabi MMA coach for Tristar Gym.