Well, this could have something to do with the fact that many of the high quality games this gen are rated M.
I'm using Gamerankings now, for the reason that these games are high quality, even though you may disagree that they're that high quality. Some of my Ms may not be M though.
Top rated games:
1. GTA IV - M
(World of Goo - E)
2. - LBP - E (?)
3. Bioshock - M
4. Street Fighter IV - M
5. GeoW 2 - M
6. SSB Brawl - T
7. MGS 4 - M (?)
8. Fallout 3 - M
9. Chrono Trigger - ?
(Braid - E?)
10. Rock Band 2 - 7+
11. Killzone 2 - M
12. Okami - 7 + (?)
Those are the 90% + games. I put () on dowloadable ones, and for some reason PC games don't appear when I check.
7 are M rated. That's over half of them.
So when half of the top notch games are M, it's no surprise that it's also the one children are most interested in.
Also, to just back-up the info with VGChartz numbers.
8 of the top 10 best selling games on X360 are rated M.
On the Ps3 it is 7 out of 10.
http://www.vgchartz.com/games/userreviewdisp.php?id=261
That is VGChartz LONGEST review. And it's NOT Cute Kitten DS
