When your child figures out how to get out of his or her crib, what do you do? Do you move them to a toddler bed and give up the cozy confines of a crib? Or do you leave them in their crib, and hope that the novelty of climbing out wears off?
I say leave them in the crib as long as they still fit. The sooner they go to a real bed, the sooner you have to deal with them smearing feces on the wall, messing with the dresser, and coming out of their room.
But couldn't they get hurt climbing out of their crib?