Batman's age was always a hot topic of debate among comic book fans. Unlike Marvel, the DC Universe has rebooted itself a number of times, but for a long time, it definitely appeared as if Bruce Wayne must have been nearing middle-age if not his early to mid 40s. "The New 52" established that he became Batman at 25 though, something which means he's currently around 30 years of age. This has led to a lot of head scratching, particularly when it comes to Robin's age (Dick Grayson must have become Robin much later than originally portrayed), but that's the rough continuity which has been established since 2011.