Here's how it works roughly in my mind:
Batman trains between ages 19-22 or so. During that time he meets Talia and unknowingly conceives a child with her.
He returns to Gotham to fight crime as a clandestine vigilante: The Batman. Age 22.
At around age 25, Batman meets a young 12 year old Dick Grayson whose parents are murdered. Bruce is haunted by the fact that Dick has had the same thing happen to him that happened to Bruce as a child and Bruce wasn't able to stop it.
He takes the kid on as his ward and starts training him.
Age 30, Superman appears as the first "Public Super hero." And batman is finally "outted." This is when the events of Action comics and the new Justice League take place.
Age 32: Dick is 19 and wants to be his own man. He becomes Nightwing and strikes off on his own. Around this time I guess Barbara Gordon could get shot and lose her ability to walk? She may be like 17? Tim Drake becomes the new Robin at age 14-15.
Batman Age 35: Present day. Tim Drake leaves as Robin and becomes Red Robin. Batman discovers he has a son named Damien by Talia and takes him on as the new Robin after being "Dead" for a year?
Nightwing is now 22 or so. Etc. And Super-heroes have officially been around for 5 years.
Does that work?
nice, I hate to ask,
where does jason Todd fit in?