Eli5:what’s the cause of someone being right or left handed? And why the vast majority is right handed?

Question

Eli5:what’s the cause of someone being right or left handed? And why the vast majority is right handed?

In: Biology

Answer 1

Father here. My family is right-handed, but I wanted my daughter to be left-handed. So since she was a baby, I urged her to lefthandedness. And she is left-handed now. I wanted her to be different in a better way.
I think righthandedness goes back throughout history, and I don’t know why.