DeadnBuried on 27 April 2014
Because, they ARE for kids. The vast majority of their games are for ages 3 and up. Mario, Donkey Kong, Animal Crossing, Mario Kart, and while Pokemon and Zelda are a bit more complex they're still fine for younger audiences. I think Fire Emblem is their only slightly more mature franchise, maybe a bit of Metroid too.
Meanwhile, Microsoft and Sony focus heavily on the likes of Halo, Uncharted, God of War, Gears of War, Killzone, Infamous, etc. Sure, Sony also have LittleBigPlanet and Ratchet and Clank, but they still put most of their weight behind their more mature games.
