>>117201436Yeah, I think more early 40s makes the most sense for him.
Say he was around 25-27 when starting and picking up Dick, who should be around 13, a few years of that before Jason (like 5-6), a relatively short gap between Jason and Tim (2-3) and then a solid 4-5 or so years of Tim before Damian and that's around 11-14 years of Batman and Robin before Damian is introduced.
It also puts people like Dick in a similar age bracket, 25-27 that fits in with his Titan friends that are old enough to be married and even have kids, without being 'old', Jason sitting at around 21-23, Tim at around 19-20 and Damian at 13.