'This is a feature limited to full YouTube Partners.'
Then it should be extended to all, or certainly anyone with any longevity and credibility.
'You are not supposed to be uploading videos that aren't suitable for YouTube's 13-year-old audience.'
So you think we should all just post videos of cute kitties and people falling over and never have serious adult discussions or presentations? What a waste of a fantastic site and opportunities to make a real difference in the world. I'm clearly suggesting here that what we're 'supposed' to do should be adjusted for the benefit of both Google staff and all users, and also in fact those 13 - 18 year olds who would then not have to stumble across things they would be better not seeing.