So, I’ve now got this idea for a head canon and it explains why I mention pre-quirk era music, movies, and games in the bio and info chapters. Basically Izuku’s dad, Hisashi along with his family, is an avid collector of stuff from the pre-quirk era and what they are is basically all of the stuff we have pertaining to pop culture like movies, tv shows, books, video games, and music. Izuku and Inko know about it and even help add more into the collection. This means that Hisashi’s side, Hisashi, Inko, and Izuku are the only ones to know about pre-quirk era media.
With that said, I wonder if there are a selection of people who would read a story where Izuku introduces his classmates, Eri, Kota, and maybe the UA staff to some pre-quirk era movies or Tv shows? Be honest please.