I think it should serve the story it's in. There are good stories to be told about teenage Peter Parker. I liked the new Friendly Neighborhood Spider-Man cartoon, and him being a teenager really works there.
With that said, I've seen a lot of that version. For new stories I'd be a lot more interested in stories following an older Peter.
But that's not how averages work. We'd really be imagining the median person.
About one third of Americans are bringing the average stupidity way, way down.