I found that Minecraft is actually a pretty good teacher. There are servers (like hypixel.net) out there where kids can play different games or buy plots of lands with coins to run shops and stuff.
My kid has seen people advertising bullshit, scams, manipulation, but also genuinely good and nice people but also betrayal from people he thought to be good.
The manipulation isn't as good as in the real world. But it's good enough for discussions on how it's done in the real world.