I was reading a story reprinted from World's Finest back during the Robin-Olsen pairing, and it made me wonder: just how old was Jimmy supposed to be? He was dating an adult woman, but was also an honorary member of the Legion Of Superheroes, which means he could not have been older than 19 (unless there were different rules for honorary members I'm not aware of, you had to be a teen to join). However, one would assume from his solo adventures that he was in his early 20's. Presumably he had at least graduated High School. So just how old was he supposed to be?