Not everyone wants all the rooms to have direct sunlight all of the time!
I prefer my bedroom to face north so that I can sleep well (it’s hard to get curtains that block direct sunlight that well).
I don’t want direct sunlight in the room where I’m working on a computer. In fact I mostly want big windows from which I can see a lot of sky (for a lot of indirect sunlight) but very little direct sunlight.
I don’t think I’m alone in that. I see a lot of south-facing windows are blocking the direct sunlight a lot of the time.
Things like patios are nice. You can’t have them this way.
Very narrow and tall structures are less stable than wider structures.
I don’t know but I can offer some guesses:
Not everyone wants all the rooms to have direct sunlight all of the time!
I prefer my bedroom to face north so that I can sleep well (it’s hard to get curtains that block direct sunlight that well).
I don’t want direct sunlight in the room where I’m working on a computer. In fact I mostly want big windows from which I can see a lot of sky (for a lot of indirect sunlight) but very little direct sunlight.
I don’t think I’m alone in that. I see a lot of south-facing windows are blocking the direct sunlight a lot of the time.
Things like patios are nice. You can’t have them this way.
Very narrow and tall structures are less stable than wider structures.
[These things](https://en.wikipedia.org/wiki/File:Stellladen_Roll_fcm.jpg) are pretty much ubiquitous in Italy in buildings since circa 1970s, and [these ones](https://en.wikipedia.org/wiki/File:Villa_Olmi_K.jpg) (which are somewhat less effective but still way better than a curtain) in earlier buildings.