Originally Posted by redmax

These might be the secondary reasons but there is something with the genes prior to birth which determines whether a child would grow up to become a right-handed or left-handed person.

The link you provided says that 15% of world population is left-handed. Please confirm.

This seems to be an agreeable answer of the above question.

I think it would be an altruistic statement to assert this. If it was so, many people in the field of physiology would have attempted to find a deliberate way to become left-handed. Still, it's quite predominant to say that left-handed people possess higher problem solving skills. Though, exceptions are everywhere.

I think left-handed people use their right hand just like right-handed people in everything except writing. All the objects mentioned above can still work in the same if operated by a left-handed person. There isn't prejudicial element in it.

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