The Garden of Eden story is an attempt to explain the problem of evil in the world. Why God seemingly does not care if we suffer. Thing is, it's all a set up. God made the Tree and God made the serpent and God set Adam and Eve up for failure.
I always thought the story of the Garden of Eden was the emergence of an agrarian culture from the hunter-gatherers.. and the big sin was not trusting in God's providence. Remember Cain offered grains and vegetables, Abel offered meats.
In any case, I like the idea that it was in Dilmun. (Bahrain)
First, the Genesis creation story does not present a transition from hunter-gatherer to agrarian. Abel did not sacrifice an animal that he hunted; he sacrificed one that he raised.
Second, this hypothesis has no connection to the rest of the Old Testament, or even the rest of Genesis. Just like a literal forbidden fruit has no connection to the rest of the story. The Bible does not go on about the evils of hunting and gathering, and it does not go on about a literal forbidden fruit.
So many people take the first four chapters of Genesis completely out of context. No wonder they're confused.
The context of the Old Testament is idolatry. That theme runs throughout the narrative. Man fell not from biological death but from spiritual death. He became a living creature not when God formed him from dust but when He breathed life into him.
Then he forsook God; he died. After his death - after his condemnation - all the licentiousness of the unrepentant heart unfolded in the human drama as illustrated in the pages of the Old Testament.
That's the context. The Garden of Eden is not a stand-alone story separate and distinct from the rest of the Bible.