I understand the story of Adam and Eve more as something to illustrate human consciousness (becoming aware of oneself). It deals with becoming a human being from a child to the transition to adulthood according to my interpretation.
As a child you go through the world and nothing is good or bad, everything has a potential at first. You are more animal than human (that is why I used the "animal" term).
The explanation of the world only takes place through socialisation and the first pains, often called world-pains, begin in puberty. From that point on, a person begins to experience a deeper sense of worry. Thus, the story of the first humans could be understood as a spiritual orientation guide, as an explanation of why humans have insecurity, pain, embarrassment, doubt and other conflicts affecting the mind, and insofar as they have lived paradisiacal lives until now, this time is then over at some point.
Many thousands of interpretations of the Bible are possible, and since interpretation is something intimate and personal, each person finds something different and valuable in the scriptures. That is how it should be. So thank you for your addition. I have not yet looked further into Cain and Abel.