Well, He did realize it was essential that they do so, so I suppose you could say that.
Yup, pretty much. Regardless of how literally one takes the story of the Creation and the events which transpired in Eden, we must ultimately acknowledge that there would have been no need for an Atonement had there not been a Fall, an actual fall from grace by two people who really did live and were given a choice which would impact the billions of their descendants. This makes you stop and think -- or at least it should -- that to believe anything other than that the Fall was a fortunate and anticipated one is to suggest that God was a pretty incompetent planner and this His Plan was derailed before it ever got off the ground. Contrary to popular opinion, Adam and Eve did not create some kind of a glitch in God's plan. When they ate the forbidden fruit, God didn't suddenly have to engage in some kind of frantic damage control. He simply did what He knew all along He would be doing when the time was right. He cast Adam and Eve out of the Garden.
Well, they did become subject to death, both physical and spiritual. They were cast out of Eden, which was essentially a paradise, and made to live out their lives in the world outside the Garden. They'd be subjected to a life full of trials and challenges, none of which they'd have had to deal with in the Garden. For the first time, they would experience illness, failure, disappointment, and every other negative. It would have been quite a traumatic transition for them. According to Mormon theology, though, once their eyes were opened, they began to realize that what ultimately lay in store for them was much more desirable than what they'd left behind.
Sorry, but I'm not following you here. Would you care to rephrase that?
I stand corrected. You are right about that. They were cast out of Eden shortly thereafter, but the ascent did begin when their eyes were opened, and their eyes were opened as soon as they ate the forbidden fruit.