Kids? They're not targeted at kids, they're aimed at everyone. Because something is approachable to everyone does not mean it can't be played by adults. As for maturity, that's laughable given the games displayed at today's conference lack that very thing. Don't bring up "maturity" in defense of violent video games, Devo. Especially when non-violent games are far more mature. Whether it be adventure games, simulations, or games like Minecraft.
I don't think you totally understood what she was trying to say. Most games marketed at "everyone" tend to have less appeal for those in an older age demographic, and you can't tell me you are just as compelled by things like Animal Crossing or Minecraft compared to games that cover subjects or settings that are aimed at educated adults.
You can't look at the whole of the games industry like a "this-or-that" problem. I think we went over this exact thing last year. E3 is a big, bombastic show that specializes in big, bombastic game showcases. It is not the place, nor will it ever be the place, where unique, unproven ideas get advertised. Sure it seems like there are a lot of shooters out there, but how about you try counting how many nonviolent games come out over the next 12 months and see how they overshadow the AAA shooters.
Whether or not you're saying it, what it sounds like you really want is another game like Shenmue. That is: an experimental game with a massive, unwieldy budget. Fortunately for the games industry, it's learned from that mistake.
EDIT: I don't understand why so many people continue to expect that E3 is anything but a sponsor-driven money circus where games get announced. It's like every year we see the silhouette of doritos and mountain dew through the curtain, yet hope beyond hope that it's something else.