The opposite is the case. We do not teach fighting techniques so that children can roam the streets and beat the weaker. Instead, we teach self-defense as a tool for personal growth and maturation. Our goal is to teach your child how to treat other people the way they want to be treated. It learns to respect other living things - humans and animals. Experience has shown us that formerly violent children change and become loving and valuable members of society.
To make a long story short: NO, martial arts do not make children violent!