Growing up with the Dursleys makes Harry who he is. What would happen if it had a whole other outcome on Harry? Instead of just knowing when to duck and shut his trap, he learned a lot more? Survival instincts are high as a once innocent boy slowly becomes a lot more dangerous. The world doesn't play fair, well neither does Harry.

October 31, 1981 James Potter, We must inform you that you are needed in battle immediately. Please arrive at the location we discussed earlier within half an hour of receiving this letter. It is urgent and we need you back on the battlefield for one last battle. Sincerley, Albus Dumbledore