Why it worked
The video likely resonated with viewers due to its relatable "then vs. now" or "expectation vs. reality" format, tapping into nostalgia for childhood and the shared experience of school. The contrast between idealized childhood activities and the more mundane reality of schoolwork is a common and effective comedic or nostalgic trope.
Summary
The video contrasts the typical, fun-filled experiences of other people's 5th grade with the creator's own, more mundane or academic experiences. It shows various scenes of childhood activities and classroom settings associated with 5th grade, followed by scenes representing the creator's own 5th grade, which appear to be more focused on schoolwork and less on play.