The more plausible thing would be that the teachers themselves don't read anything but YA novels and think TVTropes is deep media analysis, so they assign it themselves. Which we already sort of see in that YA novels are supposedly very didactic now and tuned to the hyper-normie liberal politics of the adults reading it and not the kids it's supposed to be for.
If they were going to replace curriculum with comic books they would of done it by now.
What the kids prefer doesn’t matter, and I doubt the kids preferring fast food had an effect on that change over something like cost.
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The more plausible thing would be that the teachers themselves don't read anything but YA novels and think TVTropes is deep media analysis, so they assign it themselves. Which we already sort of see in that YA novels are supposedly very didactic now and tuned to the hyper-normie liberal politics of the adults reading it and not the kids it's supposed to be for.