Since shadows can draw out imperfections and textures, flat lighting is beneficial when photographing babies in their acne skin weeks, teens with heavy blemishes, and elderly people feeling insecure about their wrinkles.
This is not a heavily desired look in portraits as you need shadows to draw your subject to life. However, there are circumstances where it’s beneficial. Since shadows can draw out imperfections and textures, flat lighting is beneficial when photographing babies in their acne skin weeks, teens with heavy blemishes, and elderly people feeling insecure about their wrinkles. If you have a photo that is oozing character and personality, you can also get away with flat light on your subject.