Are adults truly capable of independent thought either? For a lot of people, Facebook is extremely difficult to avoid, even if they disagree with its privacy practices. Apple is in a unique position to use its regulatory power to force companies like Facebook and mobile game developers to follow reasonable privacy and advertising practices. Maybe this is the job of the government, but it seems like an acceptable practice from Apple so long as it's not used in an anticompetitive manner (which the 30% cut arguably is).