I just hope that the use of metadata is enforced using AI the same way copyright is being enforced. I think a better approach would be to corral/wall-off this learning content sub-platform, similar to how kidsyoutube is walled-off. I wouldn't mind typing youtube.ed or edutube.. or something else. The value of youtube would be in the big iron behind it, so the front-end can be anything, as long as it's policed to comply. Example of it not being police. I make a video and I call it "Trump's documents classification". I then use the metadata to insert words used in FBI classification and voila..