Don't get me wrong, I like the genre as a whole very much. I grew up with NWA and Biggie etc. It's the style nowadays which I find childish, but then again I'm probably getting old.There's nothing childish about grime or rap, I mean have your opinion but no need to generalise/insult an entire genre. Also it's not just restricted to 'kids' either.
I agree that these videos are important though.