Adam and Eve are mythological - the evidence is contrary to their existence.
The fossil record supports that humans and their ancestral species have always lived decayed and died in accordance with the chemical law of decomposition since long before the 6,000 years ago Adam and Eve allegedly lived. Sin literally has nothing to do with physical death.
I am merely relating what we can learn from the Bible.
How there is that 'chemical law of decomposition' applying 'before' A&E we just don't know everything.
Since Adam was 'made' (fashioned / formed) from the already existing ground, then it would seem likely to have traces going back well before 6,000 years, but is that trace connection truly ancestral species.
Sure, there are people who say sin has nothing to do with death ( physical or otherwise ).
We don't read in Scripture about God and His created angelic life dying.
So, when God expanded His business of creation to include visible material/physical creation (us) it was very good!
God offered humankind ' everlasting life on Earth ' it as long as they did Not break God's Law.
Humans have eternity in their hearts because for each day we can think of we can think of a next day.
For each number we can count, we can count both forwards and backwards forever.
And, what healthy person wants to pick the day they want to die ______________
For me, there is more reason in believing what the Bible really teaches.