In what cities is sunlight a "scarce resource"? Many cities actively plant trees to create shade. Also, who the hell sunbathes in a parking lot? Nice pun tho

When you live in front of a tall building that blocks the Sun the days are shorter and it's harder to keep the house warm during the Winter. Maybe I went too far calling it a "scarce resource" but tall buildings that are too close to each other increase the lighting and heating costs a great deal.

A lot of European countries tend to regulate the height of buildings to avoid such problems, density doesn't have to come at the expense of basic standards of living