Was Mr Miyagi a real martial artist?

Why is karate not a martial art?
Why is karate not a martial art? The strict definition of martial arts states that they are combat systems designed for military use. Because karate originates from a civilian defensive fighting style, it is not traditionally recognized as a martial art.
Is karate a powerful martial art? With a focused mind and a fully trained body, karate can easily become one of the deadliest martial arts in the world. On the same subject : What is the 10 forms of martial arts?.
Is Kung Fu better than karate?
Which is better for self-defense, karate or kung fu? You should go to Kungfu. Kungfu is 50% punches and 50% hands. If you like wrestling, joint locks, kicking and other hand techniques, opt for karate.