How old was your LO when you could really tell if they were right or left handed?

C will be two this month and still uses both hands for most things (will switch crayons from one hand to the other, sometimes both at once, eats with both hands). She seems to use silverware more in the left hand though. My pediatric OT sister tells me this is normal for her age but I wonder when it usually becomes clear. Dh and I are both righties.

Eta: DH had always wished he was more ambidextrous so he is thrilled that she still uses both hands.