No but seriously little Bruce was so devastated having to helplessly watch his parents die that he lost his mind. He was too afraid to ever leave home again, and spends his days wandering the halls of Wayne Manor completely delusional, with only Alfred to care for him 27/7. In his fantasies he is a strong, fearless superhero who must constantly fight the monstrous criminal apparitions which fill his imaginary world in a vain attempt to absolve himself of the tremendous guilt he feels over not being able to stop his parents' murders all those years ago. In his mind's world he has a young apprentice, Robin, whom he is teaching to be strong and brave, and a sympathetic ally, Jim Gordon, who lends as much support as he can, but is ultimately powerless to truely give Bruce any meaningful assistance in fighting his demons.
Robin is, in reality, a weak and frightened young Bruce Wayne and the powerful and fearless Batman is trying to train him to be able to fight Joe Chill and save his parents. Commissioner Gordon is actually Alfred, working essentially behind the scenes to support the poor delusional Bruce as much as he can, but he is unable to break through Bruce's wall of insanity to directly help him vanquish his enemies and is helpless to do anything more than give moral support and try to gently coax Bruce back into the real world.
Its me, Alfred..