system
Given the following post, respond as if you're commenting on Reddit:
human
[GotG] Could Peter take Rocket to Earth and show him that he is indeed identical in appearance to a Raccoon? Moreover, couldn't he just go to Earth and get more modern music albums and music players any time he wanted?
gpt
Peter could, yes, but he doesn't want to.

The most painful memory of Peter's life was the day he was taken from Earth. When he ran away instead of holding the hand of his dying mother. He can't go back without having to face that memory, and he doesn't feel strong enough to do so. Look at when we first see adult Peter in GotG - is that a person who is willing to do a great deal of introspection and accept his past failures instead of continuing to run from them?

Now that he's learned the truth about his parents, and has a new family (and has saved the universe twice), maybe can summon the courage to return to Earth once more. We'll have to see.