The advantage of being a left-handed is that the right side of
brain recieve more stimulation than most of the right handed people,
yet this is only an urben legend that haven't been prove by any scientific
result. On the other hand, being a left handed brings some disadvantage as well.
For example, while at the dining table, the elbows of left hamded people bump
in others' elbow in the case when both reach their arm in the same time. This
also one of the reasons that most parents would want their left handed children
to practice using chopsticks on the other hand.