Peter Parker is different. He doesn’t operate on international, galaxy-wide levels. He’s a just a fifteen-year-old kid from Brooklyn, and in turn, the movie is decidedly mortal. Peter may be genetically enhanced, thanks to that radioactive spider, but everything else is very, very mundane. Venom is just a guy with a pair of alien metal wings trying to provide for his family. Iron Man is just a dude trying to help a kid not make the mistakes he did, while making a lot of the same mistakes his father did. Peter is a nerd with a nerdy best friend who is just trying to fit in.
It’s a superhero movie, but it’s a coming-of-age film about a teenager trying to find his place in the world, too. And that’s what made it work.