ninjustsu
ninjustu
ninjutu
ninjutsu
ninju-ts-u
No, it is not mandatory to register with the police when practicing martial arts.
ninjutsu
sitting and eating hot dogs but mostly karate,fighting,and being a ninja
It is recommended to start practicing martial arts around the age of 6 to 7 years old for optimal physical and mental development.
dating, skiing, driving, and practicing martial arts such as judo and karate.
since the world started
It depends on the person practicing it and the amount of effort put in.
Children can begin practicing martial arts as early as 4 or 5 years old, but the best age to start can vary depending on the child's maturity and interest in the activity. It is important to find a reputable martial arts school that offers classes specifically designed for young children.