Looking into some comments, it sounds like YouTube is supposedly so averse to COPPA violations (collecting data on child viewers) that content it believes to be truly made for children then must be designated as such, even if the maker accurately marked it with a 18+ rating.
Youtube therefore would rather emotionally scar or groom children than accidentally collect their metadata.
I don't see how allowing content uploaders to manually set their content as 'not for kids' would lead into a COPPA violation. You just blacklist the content from the 'for kids' app at the uploader's request and no additional data gets collected.
Looking into some comments, it sounds like YouTube is supposedly so averse to COPPA violations (collecting data on child viewers) that content it believes to be truly made for children then must be designated as such, even if the maker accurately marked it with a 18+ rating. Youtube therefore would rather emotionally scar or groom children than accidentally collect their metadata.
Ah, yes. Another successful government regulation with "unpredictable" side-effects.
I don't see how allowing content uploaders to manually set their content as 'not for kids' would lead into a COPPA violation. You just blacklist the content from the 'for kids' app at the uploader's request and no additional data gets collected.