User blog comment:Rassilon of Old/Young Justice spoilers at Comic-Con 2012/@comment-99.97.21.38-20120908014405/@comment-4955817-20120908051553

well i guess it's how you would define old. i remember from a while back that bruce timm had said that in the series batman was 30 and robin was a 19 year old college sophmore. and i believe that at that time barbara was at least 18, so they were probably around 12 years apart.