Hawthorne's writing is marked by its introspective depth, by its urge to get inside the character he created. Hawthorne is one of the first major American writers of fiction to focus on the interior lives of his characters, to explore what was considered the deeper phychology of art. Hawthorne's work suggests that the imagination might reconcile such extremes and establish a more balanced, less dehumanized view of individual action and moral responsibility. Hawthorne express these kind of actions in the story and plays with your imagination and makes you take different perspectives. He lets you, make the final decision and doesn't give a final clue to what happened. Did Robin join the rest of the group or did he leave on the next ship out.
In my perspective, Robin joined the colony and realized that he couldn't survive in the new colony without their acceptance and his characteristics of England. Robin and Hawthorne parallel because both of them faced the problem of being accepted by society. They might of had obstacles and difficulty fitting in with society.