Disclaimer: I don't know anything and I already know that.
When God said, "Don't eat of the tree of the knowledge of good and evil," what he really said was, "Don't choose fear.".
The fallen one tried to get Adam to fear, but Adam wouldn't listen, so the fallen one tried to get Eve to fear. He found a way in, and Eve shared that fear with Adam. Perhaps she started a fight with him.
Then God returned and they couldn't bear to be in his presence because they had partaken of fear and anger. That made the Light and Love impossible to bear, so they had to leave to continue to exist.
And their children were born to parents who had learned to fear, and who had learned to be angry. And the fallen ones capitalized on that to create as much pain and mayhem and fear as they could get away with in all of the generations since Eva and Adam.
As far as the first clothing goes, I've heard the theory that Eve and Adam were clothed in Light until they "ate the fruit" - then that Light left and they had no covering to protect them, so God made clothing that would work in a pinch, but wasn't as good as what they had before.
Why, then, do the scriptures say the man and the woman were naked but not ashamed? Maybe because they didn't wear clothing like we do, but were clothed in Light.
What about Eve/the scriptures saying Adam and Eve would have had no children? It's possible they were in training and, at some point, the Gods would have taught them how to combat fear with love, then they would have gone prepared to the dark spot in the garden (see below).
Why were fallen ones allowed to roam the garden? I'm sure I do not know . . . but what if they were only confined to one area? What if they were confined to the spooky old house and yard in a certain part of the garden that was majorly creepy to anyone who knew what fear was? What if the Gods said to stay away from that creepy place? (After all, the fallen ones were kicked out onto the same planet. Maybe they demanded a place next to Adam and Eve's house. Far enough away to not overpower them unawares, but close enough to entice them because . . . well, I guess life is about choices. And, besides that, this planet was their turf.)
Adam wasn't interested in the spooky old house, but EVe wondered what it was, so crossed over the boundaries to explore it. In that case, the fallen ones had a chance to put fear and anger into her heart and mind.
And, since it's an allegory, what if the Gods were Eve and Adam's parents (two couples) who had survived a global disaster, and had reached a spiritual level so high that they were, in reality, Gods?
Just wondering. It makes for an interesting story, to be sure.