Harry's friends are more sensible on that particular day in the forest, despite what they might think. For just a second, he feels hurt. All the other seconds, he's relieved. Random chance seems to be Harry's only companion, along with one other, much less eager helping hand. Deathly Hallows, butterfly effect, if said butterfly was as mad as a hatter.
Harry grew up normal albeit with a passion for music. When his letter arrives, so does he, at Hogwarts, with a guitar on his back, and a cousin to take care of. Nevertheless, whatever was waiting for him on the other side was extremely unprepared.