You are suggesting God said to Adam "Here's the third rock from the sun. Have fun. I'll check in on you from time to time?"
OR when God confronted Cain about his slain brother. Did Cain (in his George Costanza voice) say "Was that wrong? Should I have not done that? If I had any idea that kind of action was frowned upon it could have been avoided"
The Ten Commandments have been with us from the beginning. Cain knew it was wrong.
Read closely and you'll see that I 'suggest' nothing.
Far be it from me to guess what GOD may have done or said in the blank spots.