Bias against left-handed people Bias against people who are left-handed includes handwriting, which is one of the biggest sources of disadvantage for left-handed people, other than for those required to work with certain machinery. About 90 percent of the world's population is right-handed, and many common articles are designed for efficient use by right-handed people, and may be inconvenient, painful, or even dangerous for left-handed people to use. These may include school desks, kitchen implements, and tools ranging from simple scissors to hazardous machinery such as power saws. Beyond being inherently disadvantaged by a right-handed bias in the design of tools, left-handed people have been subjected to deliberate discrimination and discouragement. In certain societies, they may be considered unlucky or even malicious by the right-handed majority. Many languages still contain references to left-handedness to convey awkwardness, dishonesty, stupidity, or other undesirable qualities. In many societies, left-handed people have been historically forced as children to use their right hands for tasks which they would naturally perform with the left, such as eating or writing. ## Fa