A Person who understands self-defense concepts well, does not engage with a fight easily. If fighting is the only option to survive.
The person who faces the danger may be good in combative martial arts but due to an eye blink time mistake, the ending may go bad. Always be prepared with self-defense skills as well as the following self-defense practices which may lead you to increase the chances of survival.
Along With correct adjusting and updating any style can be made more effective to self-defense in reality. Not only in physical training but also mental training can make a proper fit for self-defense.