During the events of Avengers: Endgame,
Spider-Man comes back from being snapped, exactly the same as he was five years prior.
At the end of the movie, we see that
he is back in high school, greeted by his best friend Ned Leeds, who expresses relief at seeing Peter Parker, implying that he either knew Peter was "snapped," (and therefore probably wasn't snapped himself) or that he thought he may have been killed in the fight against Thanos.
in the trailer for Spider-Man: Far From Home, Peter and Ned are on a school trip with their peers from the first movie, including Flash and MJ, as well as at least one of their other classmates.
I was wondering if there was a canon explanation for why all of these characters still seem to be in high school? The obvious answer would be that
they were all snapped and so came back the same age, which is plausible, but it could also be that in the societal breakdown in the meantime, schools ceased to function, so everyone resumed where they had been.
While I find either of these to be reasonable explanations, is there a specific canon reason for this? And have any of them officially aged?