It baffles me to see so many people think that fortnite is a kids game.
So many things in this game are not suitable for kids.
Let me list off a few ips that are in fortnite.
John Wick, Alien, God of War, Deadpool, The Witcher, Doom and most recently, Invincible.
None of these are appropriate for kids, there’s even a questline in the pve that involves sending a drummer to rehab (in that case it’s more implied than outright stated so you could argue that’s okay)
The kids most likely don’t get the references or know the characters you mentioned. All they care about is cranking fat 90s and (speedbuilding?)