Why do we have a dominant hand?
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Your brain has two halves. Broadly speaking, each half controls a half of your body. So if you want to be equally good at writing with both hands, you have to spend the time and resources learning how to write *twice*. What a waste! Save some of the time and resources by just learning it once.
But, it’s not like your non dominant hand is useless. While your dominant hand is learning the fine control needed for writing, your left hand is learning to hold the paper steady. Sure, it’s not as difficult, but my dominant hand personally feels really awkward when I try to switch.
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