For the most part, the reason that not much is offered by way of instruction for all of Adam & Eve's descendants is that they BOTH decided before they had children to figure things out for themselves. She, the Bible says, was deceived. Adam was not but chose to die and reject God's sovereignty along with his beloved wife. Notice Genesis 3 after the sin,
9 And Jehovah God kept calling to the man and saying to him: “Where are you?”
10 Finally he said: “I heard your voice in the garden, but I was afraid because I was naked, so I hid myself.”
11 At that he said: “Who told you that you were naked? Have you eaten from the tree from which I commanded you not to eat?”
12 The man said: “The woman whom you gave to be with me, she gave me fruit from the tree, so I ate.”
13 Jehovah God then said to the woman: “What is this you have done?” The woman replied: “The serpent deceived me, so I ate.”
Eve finally realized she had been deceived but the death penalty fell on her anyway because that was the price God imposed for disobeying Him. Do you mind dying? Most people don't like the idea of death. (But it's there...) And it eventually will be done away with.