It's only a matter of time.
Mankind is unique among the mortal creatures because of the knowledge of the fruit of the tree of knowledge and the accompanying free will.
I have come to the conclusion that the tree of knowledge didn't really do a thing. Adam's fall came before they ate the fruit for that is when they disobeyed God. All the fruit did was to illuminate the fact that their nature was such that they were capable of disobeying God. And so with the first command they set forth on the world's destructive path. And, if we truly believe that every command that comes from God is for our benefit, then God's command not to eat of the tree was for their benefit and they didn't care in their best interest.
Adam's will is no different then our own. His will was to do the things that do not help us. So is it with our will. God is out to essentially save mankind from itself and in the process teach us that we need to rely solely upon Him.
How can you teach a being which cannot do otherwise to do otherwise?