Maybe the world simply isn't as post-apocalyptic than what we were led to thought? I mean the only "wasteland" part we saw is around Tokyo-3, which was the ground zero of the Impact!
I know that, what I mean is. . .even if the world isn't as post apocalyptic as Q drummed it up to be. There's still the fact that the Impact center is likely at least a few days from any civilian populace, and the pilots are likely very limited with what they can do and where they're allowed to go when they aren't in battle. Does the Wille settlement or what not have a McDonalds on base or something?
I'm reading too much into it.