Regarding Peter Quill being on Earth for the first time since he was a kid ... do we really know that to be the case?
I am not saying he has definitely returned post-abduction, but consider these things: the embedded tape deck on his ship is clearly an Earth-made device. Then there is the tee shirt the orange (?) gal was wearing, the one in the hold of his ship at the beginning of the first movie. I don't recall exactly what was on the shirt, but it appeared to be something that would be on Earth, a marina or something? Surely Quill didn't have these things in his back pack?
I am not saying he has definitely returned post-abduction, but consider these things: the embedded tape deck on his ship is clearly an Earth-made device. Then there is the tee shirt the orange (?) gal was wearing, the one in the hold of his ship at the beginning of the first movie. I don't recall exactly what was on the shirt, but it appeared to be something that would be on Earth, a marina or something? Surely Quill didn't have these things in his back pack?