Do you think there would be no social consequences to telling all newly-minted adults that everyone they've interacted with in their lives weren't "real" people?

And how are they supposed to be sure that they've really been 'let out' of the simulation? What "telltale signs" do you imagine there would be?

Also, they're supposed to come up with science and empiricism and recognizable theories of the world when they're supernaturally immortal and uninjurable? Before they come up with the simulation hypothesis, what's to stop them from thinking they might be a demigod who the universe revolves around (which is actually also correct, in a manner of speaking)?