Is It a Necessity?

In Australia, it's illegal to have a bedroom without a window. I'm so excited for when I can come and visit you and your property. Just want to have a dinner party in my house. And you know what else? You can paint the walls whatever color you want. I can put nails in the roof. So I can hang plans. It's like $600. But, oh, is it a necessity? Well, the house that I was going to buy only had three windows, so it would be a necessity. Only, no. Wait, how do I not only have three windows, but I had two bedrooms? One bedroom in each, one window in each bedroom