Well, I watched the video. And there I see another reason why this wouldn't be a living area. Personally I like to have a door big enough to carry the groceries in. What would your wife say if you asked her to live in a house with only one dog door sized opening to get in and out. For a large dog, but still a dog door.

Now one thing I can see. That is kids. Kids will go all kinds of crazy places and do all kinds of crazy things when they get bored.

Bill Gill

C is not the speed of light in a vacuum.
C is the universal speed limit.