In the Pedestrian, why does Leonard Mead keeps all of his lights on?

So his house stands out against the others.

Explanation:

"Something we all want to be, conveyed throughout the story. Whether we mark ourselves out by what we wear, say or do, we all want to be seen as an individual. No one likes to be a face in the crowd. The fact that he keeps all his lights on in his house suggests he wants to stand out as an individual. Literally his house stands out as all the other houses are grey and tomb like, metaphorically this shows he is an individual. He is compared to a hawk, further adding to the idea he strives for freedom."