Batman has had several partners over the course of his storied history, but none are more significant than Robin. Whoever wears that mantle is not only responsible for watching Batman's back while on patrol, but also for reining in the darkness that threatens to consume him every time he puts on the cowl. In short, Robin is the light to Batman's darkness, bringing joy and hope where Batman brings fear. Each of the young men he has worked alongside has fulfilled this role in their own unique way. Yet, which one of them will take over as Batman once Bruce Wayne leaves the role?
Source:https://www.cbr.com/robin-deserves-batman-mantle-dc-comics/