In Young Avengers #1, J. Jonah Jameson says that after Bucky was killed, no one wanted to be like him anymore, and sidekicks were only things that were seen in comic books. Thinking more about it, I realized he might be right: except for Golden Age characters, Marvel’s never really used the sidekick gimmick that much. They’ve had teenage characters galore, but none who were really sidekicks working as partners with or teen versions of adult characters. (Rick Jones, for instance, was always more of a tag-along than a costumed crimefighter.)
DC, on the other hand, has done it so often that there ought to be a metahuman version of social services to look into the whole thing.
So my question is: can you think of any true sidekicks in the Marvel Universe? Who am I forgetting?