I take it you haven't been in that industry. Because the vast majority of existing houses is from before that.
I haven't, but I have eyes. And the places in this game where our cast hang out are generally newer construction (if the commercial buildings/college aren't new, they're updated), which is consistent with what we've been told of the area: they've been building like crazy, right into a bust.
Finally an explanation why at least a third of the drama happens.
I'm not quite sure what you mean here--near-complete lack of communications (with the exception of occasionally receiving broadcast media) has been well-established since the first couple of days of the game. If that weren't the case, there really is no story (or at least, a very different story)--call the authorities, get rescued.
Why are there no comms? That goes back to "what is the fog?"
Edit: thinking more about this, you probably meant that lack of interpersonal communication is responsible for much of the drama we've seen, and I missed the joke--and in so doing, I guess I illustrated the point.
It has been clearly established that in the world of TOXICITY, "in a vehicle" and "in a building" provide EXACTLY the same protection from the fog.
We've seen little enough time with our cast in vehicles that I don't think this can be considered "clearly established." They've spent weeks in various buildings; they've spent minutes in vehicles out in the fog. We don't see any evidence of their having trouble with the fog inside the vehicles, so that's good. Some protection? Of course--that's all we see so far, and all we need to see. "Exactly the same"? That could be the case, but it hasn't been hinted at, much less "clearly established." If they can come up with a way to keep a vehicle running for hours on end in this stuff, then we'll need to address the question, but that isn't yet the case.
Ottoeight said, some suspension of disbelief is required.
Suspension of disbelief is well and good, but the more of it a story requires, the harder it is to get into the story. One of the key parts of this story is a fog that, in many ways, doesn't really behave like any known physical substance, so that naturally raises the question of "what is it?" It's a pretty common question, even in the time I've been following this thread, with many people reaching the conclusion that, if it doesn't behave like any known physical substance, it must be supernatural in origin. I've already said that's my (current) conclusion, and I'm fine with it.
Fairly sure I never disputed that the effect on cars (and certain other technologies, such as means of long-range communication) is greater than that on MC and his girls.
So we agree that the fog isn't acting like a "natural" corrosive substance.