We can always go back to liveleak and vimeo. I think all the youtube I watch would be fine for an 8 year old and I think most of the people who use youtube are the same. The most popular platform should be the most innocuous. But there should be alternatives.
Good luck trying to monetize that. Good luck getting viral traction with that. (I will be happy if someone succeeds, because that will be the end of the YouTube monopoly on video commentary.)