I semi-agree with what Crown and Redterrors are saying, but I wonder how Youtube (or anyone) can accomplish this - it seems that there are so many cases where it's difficult to determine who the content is for age-wise (and of course, many obvious cases!) I also have the feeling that the side-effect of a removal of certain keyword videos will be driving some kids to watch less appropriate content on the main site. I personally like the idea of the Kids App and its competitors - I do, however, wish there was a better way to differentiate what age groups content is directed to. All kids content can't be aimed at 2 year olds.