How easy it is to start to sound like our parents' generation eventually! Video games were ruining society once and, before that, discotheques, TVs and rock music.
I have two young children who enjoy YouTube more than TV and while they do watch a lot of weird (kids') channels, they've learnt a lot too and I haven't seen it play out in any negative way so far. At the least, they've seen people with many more opinions and of many more cultures and races than I had at their age - a good thing, to me.
Let's keep an eye on this and continue to be observant, caring parents who don't give up responsibilities to an iPad, but at the same time let's not be the parents who say the Smashing Pumpkins' lyrics are scrambling your brains when they aren't.