Many people are afraid of the dark, and lots of light is considered a crime deterrent. But lots of light also masks the night sky, taking away part of our heritage, the stars and planets making their way through our sky. Light pollution is so severe in some places that the only objects visible at night are the moon and, occasionally, Venus, the brightest of the planets.
Some people don’t like to see the stars, because doing so makes them think about where they are, and infinity, and they freak out. Of course, some people don’t even need the night sky to freak out; a friend told me one time that she didn’t like clear, or fair days, because she was afraid that she would float away. She didn’t feel that way when it was cloudy, though.
Sometimes, I wish that there would be a massive power failure in my area, so that I, and everyone else in the area, could see what night was like without a lot of artificial light. As it is, I am fortunate to live in a lightly populated area, with very low population density. But it is still hard to see the Milky Way anymore, that river of stars stretching across the sky.