Left-handers are not smarter than right-handers, but they should be more creative. Pierre Marshall, a historian and author of the New Left-Handed Dictionary, made a study on left-handed people and found that left-handed people performed better in spatial perception, although they were not as smart as right-handed people. Left-handed people are more creative and imaginative, which explains why left-handed people are so outstanding in the fields of art, architecture and medicine.
Both parents are right-handed, and children can also be left-handed. Left-handers are related to heredity, but not to heredity. If both parents are right-handed, is the child born left-handed? No, whether you are actually left-handed may be related to the posture of the baby in the mother's belly. Pierre said that left-handed parents have a 50% chance of having left-handed children, but right-handed parents also have a 5% chance of having left-handed children.
Left-handed people are more creative, but it is not easy to use scissors. In the eyes of ordinary people, lefties seem to have two left hands and no right hand, which will interfere with some movements. When using certain items (such as scissors), left-handed people usually behave clumsily. It is natural that they are not used to using their left hand, because most people are right-handed.