"Light pollution is the effects of artificial lighting that harm the environment or interfere with people's view of the night sky."¹
Here is an example of a night sky without major light pollution. Isn't this something worth working towards?
¹Pasachoff, Jay M. "Light pollution." World Book Advanced, World Book, 2020, www.worldbookonline.com/advanced/article?id=ar753958. Accessed 8 Dec. 2020.
Not convinced? Here are even more reasons why unnecessary artificial light is harmful (under The Negative Effects of Light Pollution).