Context · Games
Fortnite is more than a shooting game, it is a social hangout and a concert venue and a marketplace, and it comes with real social pressure baked in.
What it actually is
It is a free-to-play game where 100 players compete to be last standing, but the shooting is almost secondary now, and kids use it to hang out and voice chat and attend events and express identity through outfits called "skins."
The social pressure
Skins cost real money via V-Bucks, and the default skin marks you as a beginner, so children face real pressure to buy skins just to fit in, and that pressure is not accidental, it is the business model.
The voice chat reality
Open voice chat with strangers is on by default, which means children can hear and be heard by anyone in their lobby, and the language and intentions of strangers are completely unpredictable.
What to watch for
Watch for V-Bucks requests, voice chat with people they do not know offline, and frustration or anger after playing, because competitive games are designed to be emotionally intense by nature.