According to Jason's wiki entry he was 18 when he first made his moves in Gotham, making him 19 OYL. This seemed off, so I started going through my back issues of Robin to find indicators of Tim's age. In #116 we see Tim's sixteenth birthday is in July, the summer before his life kinda went to hell. Now OYL, when Tim is looking for the Joker's nuke it's stated that the story is set in August. Meaning that Tim turned seventeen just prior to his year long sabbatical, making him eighteen now.

So, was Jason resurrected as old as he was when he died? Or was he aged as many years as he had been dead? Also, if he's only 19, why is he drawn like an adult, while all the other teen heroes and villains are drawn like their twelve? Editorial mistakes? Or just plain wiki madness?

Any help would be appreciated!