The Marvel Cinematic Universe is a very big place, spanning both movies and shows that are available with a Disney+ subscription. Given just how many stories have been told, there are a number of characters and possible plot points that fans still worry about. That includes Ty Simpkins' s Harley Keener, a kid who helped Tony back in Iron Man 3. Fans haven't forgotten that kid, but I agree with their take on his role in the greater MCU.
