To understand Brazilian Jiu-Jitsu, you must understand the difference between a grappling art and a striking art. Grappling arts (such as Jiu-jitsu and judo) use wrestling-like holds to control an opponent, while striking arts (such as karate) use kicks and punches to incapacitate an opponent. Striking arts work best when you can launch an attack before an opponent gets close. Grappling arts are designed for close contact, so even if you have been attacked from behind or are caught in a clinch, even a headlock, you will have a range of effective responses at your disposal. BJJ turned the martial arts world upside-down by showing that, when flat on his back with his opponent on top of him, a skilled BJJ practitioner was still in an extremely favorable position. Having an instant and effective reaction to an attack makes all the difference in the outcome, and the BJJ self-defense system places much emphasis on this element of surprise.
Size and Strenght
A karate chop is not always the answer. Take, for example, a small person trying to punch a 260-pound man; it is just going to aggravate the situation. With our techniques, we use the pain from an arm lock or another submission hold to control the situation. BJJ was developed by men of relatively small build, and had to develop ways to defeat larger opponents that could be employed by smaller ones. This makes it the ideal self defense system. With little strength, just skill, to properly execute a guillotine choke, wrist lock, or an arm bar that will have your attacker begging for mercy and completely in your control.
A drawback in striking arts is that, when training at some level you have to pull your punches. Because the striking arts are designed to injure an opponent with kicks or strikes, you cant go very far while sparring, risking injury otherwise. You never get the feel how quickly things happen in a real fight. Because BJJ has little use of strikes, relying on chokes, arm locks, and other submission holds, it can be practiced exactly the same way it would be in a real fight.If the person you are facing is a friend who is temporarily out of his senses, you can control him without hurting him. However, if you are dealing with a criminal or a deliberate act to injure you or a loved one, you can apply a more suitable response level.BJJ emphasizes control, not striking, and it is particularly sought out by people whose job is to subdue individuals without hurting them; bar bouncers, policemen and security personnel.There, in a nutshell, are some of the reasons why Brazilian Jiu-Jitsu self defense is the perfect system for most people who want to learn how to defend themselves.