Whatever Happened to the Loyal Sidekick?
Art and cover by Rafael Albuquerque
But as will all popular characters, they can't be kept down. With Tim Drake's Robin a self titled comic was created and not long after one for his predecessor Nightwing. They were successful for 12-14 years detailing the duos soli adventures. This is where out OED definition stumbles. Tim and Dick were not sidekicks in these volumes. During the period these were published the focus in Batman was more on his struggles and the duo was put aside. I haven't counted but I would bet Tim Drake has more solo adventures than team ups with the Dark Knight. Of course we can't forget the Teen Titans, founded by Robin and 'sidekicks' in the Silver Age. While the boys of the group were tagalongs of the older heroes Wonder Girl was a new creation. She was created when the writer confused a tale of Diana as a young Wonder Girl rather than Wonder Woman as a separate character. (Its interesting to note that Supergirl was excluded despite seeming like an obvious choice in the 60's) Here the sidekicks could have their own adventures but by having their own adventures separate from their mentor they become less of a sidekick and more independant heroes. After all, the definition requires the duo to be together.
No popular character can be a sidekick, there will always be too much demand for more focus on said 'subordinate'. Fans will demand more active roles for their favourites, compatance and equality! I would like the in-universe suggestion that while these heroes are good the future is bright, Dick Grayson will eclipse Bruce Wayne's reputation by leading the Justice League against a Starro Invasion of multiple planets. That Donna Troy will reconcile the Amazons with Men and create an alliance against evil in all forms. That Supergirl will live on and on and on and on as kryptonians do and when the Earth meets its end she moves on and continues her fight against evil across the stars.