Lol my friends son is 4. all of us are big gamers and he got into it when he was 2. Left for dead 2 was his favorite until they got Gears of war 3. he's actually very good at it, considering. last time i was at their place me and him were playing against his mom and dad, us in the bedroom, them in the living room. now he never does this with them but every time he died he would slam his fist on the bed and yell "Damn!"
It was all i could do to keep from rolling right there every time he did it.
I'd love to get WMC, i'd even read it to my kid. The best part about here is no one knows what bugger is so he/she can say all he/she wants