5. They Will Win a Fight
If you are sparring, do not choose a left-handed person as your opponent. Whereas righties are used to fighting mostly right-handed people, lefties are accustomed to defending themselves against both right-handed and left-handed people. The world is practically made for the right-handed population, so we are used to things coming from the right, holding things with our right hand, and so on. Well, for a lefty, they must deal with right-handed things on a daily basis, but they also live a life that is left-hand dominant. So, if it ever comes to do or die, try to have a left-handed person on your side.