At what age did Bruce Wayne became Batman?

At age 14, Bruce Wayne began his global sojourn, attending courses at Cambridge, the Sorbonne, and other European universities. However, he never .... identity as Batman. Dick wanted justice for his parents, and he agreed to a regiment of rigorous physical and mental training so that he could become Batman's partner. read more

He left Batman about 6 years later to become his own hero at 18, making Bruce 32. He has had 4 other Robins since, all of them spending between 1 month to a few years with him (3 of them "died", at least for a while, those odds are not good). One of those Robins was his son Damian Wayne, who was about 10 when he died, and died quite recently. read more

When Bruce and Batman were split into separate people by the wish-granting Id, Bruce retained the memory of Thomas and Martha Wayne's deaths, leaving him angry at the world with no way to channel that rage, while Batman began to gradually lose focus, lacking any actual drive to avenge deaths he no longer truly 'remembered' even if he still had his existing skills. read more