Left-handed Persons Are Sinistral But Are They Cursed with Disorders by Birth?
Research into left-handed individuals may have explored an aspect of the brain and possibly the immune system that leaves them prone to illness.
If you prefer, there is one universally accepted bias/prejudice, and that is in the privileges afforded right-handed individuals. Take a moment and look around your home, office, public areas of accommodation, and even sports equipment. What do you see?
Everything is designed and made to suit the right-handed person. Try buying a left-handed baseball glove (the internet has helped solve this one) or a set of golf clubs or even kitchen equipment or musical instruments, all made for the right-handed but increasingly affording access to the left-handed. Despite these limitations, we have had three left-handed presidents; Gerald Ford, Bill Clinton, and Barack Obama.
Early beliefs about the devil influencing the left-handed led to bizarre actions by teachers in schools. Children learning to write and who showed a propensity for using their left hand were subjected to unpleasant forced conversion. My mother, initially left-handed, had her left hand tied behind her back in school. Self-esteem for lefties was sorely damaged.