You are the younger sibling of Bruce Wayne son to Thomas and Marta Wayne and after your parents died on that night by the movie theater Bruce have been overprotective of you so his  solution was to have you go with him to everywhere he went to train and you also got trained but you are a Prodigy at everything you did from detective work to technology building when Bruce decided he was ready to fight crime he left asked you if you was ready you told him not yet that was four years ago now you are twenty five and he is thirty two and you are back In Gotham