Jonny, the way I see it and understand it, and based on the premise you present, "man" was created to die. The presence of the Tree of Knowledge of good and evil and the Tree of life, in the Garden of Eden were a sure sign that, eventually, man will take the fruit. Notice that even the event was in a way orchestrated, since Satan tempted Eve with the fruit of the Tree of Knowledge of good and evil, not the Tree of Life.
As smart as Satan is, he failed miserably in his deception. Can you imagine what would have happened if Eve would have tasted the fruit of the Tree of Life and then the other fruit? Mankind would have been living eternally in a state of sin.
