HE'S SEVEN BLOODY YEARS OLD. I don't care if it IS "weakness" that he needed brass knuckles to make his punch hurt Batman, he had no business being able to punch Batman in the first place. I don't care if he's unable to work the radio in the Batmobile while DRIVING THE BATMOBILE. I don't care if he messed up his plan to pose as a member of the LoA shortly after cutting one of them in half with a sword!
I don't care if every once in a while he drops the ball, he's about half the age that Tim, Jason, Steph, and Dick were when they became Robin, while displaying skills greater or equal to the things they were able to do.