lol damn that oath. As for the consoles... it depends which one. Generally:

PSP: mainly older games, stuff like GTA and shooters (which are usually 12+)
DS: mainly younger games, still fun for adults but not offensive to kids in any way/disney and pixar games
PS2: something for everyone
360/Xbox: mainly older games, not in the same way as PSP but more complicated/PC games for the console lover
Wii: all round fun, kid games, adult games, everything!

Though yes I do agree, in general its consoles for kids/casual gamers and pc's for kids whose parents gave in to the "its for homework" reason for buying it, and for the geeky gamers (bring on WoW! lol)

On the whole subject of ratings, I find it hilarious that Bully/Canis Canem Edit was in huge uproar over the name, and yet it turns out its only a 15. We were all expecting it to be an 18 with all the usual hype surrounding it.