How did right-handedness come to be the most common condition? A previous post stated ( though citation not given) that God was right-handed So it figures that Adam was right handed. Maybe Eve too. Unless the rib used to create her was from Adam's left side.. I remember somewhere in the Bible the statement that the "righteous" would in heaven "sit on the right hand of God." There must be a big empty space on His left hand, since the unrighteous do not get past the Pearly Gates..( I do not mean to suggest that no lefties were allowed on His right side. The Bible didn't discuss that, as far as I recall.)

Psalms 110:1 The LORD said unto my Lord, Sit thou at my right hand

I will uphold thee with the right hand of my righteousness .
For I the Lord thy God will hold thy right hand, saying unto thee, Fear not; I will help thee. (Isaiah 41:10, 18)