"For all its faults over the years, children’s gaming has undoubtedly been the largest source of entertainment and pleasure for gamers of all ages. No other genre has tapped into as many audiences, attracted as many players and satisfied as many customers as it has – and I’m not just talking about the stereotypical Platforming games either!" - Gary Marston, Explosion.com
Look at "kid's movies" like Disney's "The Lion King". It's a pretty serious story (I mean sure, it's essentially Hamlet with talking animals), and yet I understood it as a child. Similarly, I think games should make their stories a bit more accessible to kids without watering themselves down. If a serious story can't be told without being littered with F-bombs, I have a newsflash: it's not a serious story. It's just something written to appeal to 12-year-olds and their "big boy list of naughty words".
PS Vita almost 2 years late to Apple's, Android's & 3DS' kiddie party.
Nintendo owns 70% of Japanese console gaming market this week which is comprised of mainly of younger gamers.
The only constant in console gaming is change. Sony & M$ were to slow to adapt.