Jillybop, thanks for helping me with my question by the way! As to yours, I’ve been doing martial arts for a very long time now, and speaking from my experience of being a kid at one point, and dealing with them at others, my answers would be as follows:
Age - There isn’t any specific age to get started. Brandon Lee (Bruce Lee’s son) started literally as a baby, and Frank Shamrock (5x Ultimate Fighting Champion) started either at 21 or 22. There are 3 things to think about when thinking of starting a kid in martial arts.
1)Does he like to fight? This could mean watching WWF, Dragonball Z, or some other show. Or it could mean playfighting with other kids, or even you or some other family member. If he doesn’t, he may not like a martial arts class. If your child likes to go around violently kicking other children’s asses, its probably not a good time to start in martial arts!
2)Now your child is 4, so I don’t think it applies, but usually when a kid hits grade 1-2, he experiences this little thing called bullying! This is a good time to start teaching a kid how to defend himself.
3)His maturity level! Again, a 4 year old is a 4 year old, so don’t put him into a class that teaches eye gouges, strikes to the groin, biting, bone breaking, and flesh ripping! You don’t want your kid going up to his friend and trying out some neck breaking move he learned in class to see if it works! If he wants to try martial arts, start him in a “flashy” style, like Tae Kwon Do or certain types of Kung Fu. I may get yelled at here, but these styles are mainly, “hey that was a cool jump kick” martial arts. Pretty worthless for streetfights.
Best Martial Arts - When the kid is old enough to know that he shouldn’t go around beating everyone up (which, sadly, is rare for anyone under the age of 18 these days), enroll him in a more “useful” martial art. Thai boxing, Jiu Jitsu, Boxing, Wrestling, Mixed Martial Arts, Krav Maga, Jeet Kune Do, etc. He could be ready for these at say, 10, but make a judgement call. These martial arts are good for knowing how to defend yourself in real life, and often you have to be between 14-16 to even START training in these styles.
Be warned, training for a real fight means training HARD! Your kid will come home many times with broken fingers, toes, a black eye or two, but its all in good fun!
Anyways, the most important thing to a young kid, is whether or not he likes it. You may have to force him to TRY the class, but after a while, he might be begging you to go again!