Hmm- anyone else have a 4.5 yo that has not chosen which hand to write with?
He eats with his left hand, throws equally well with both hands, bats right handed, uses a screwdriver with the right hand...

If you put a pen in front of him, he'll pick it up with either hand, and writes equally well with both hands. He doesn't generally switch half way through a picture/word, but the next time/project he'll use the other hand...

?? insight