I don't know if "practicing photography" is really what I do. I love taking pictures. I love image composition. I love visualizing what the picture would be like, and working at getting the results. I am attracted to forms and shapes, colors, light and shadows, and how time somehow is perceived to be frozen on a flat piece of paper or a flat screen. How an arrangement of light and darkness across a field can convey or summon an emotion, or summon it away, is one of its greatest strengths and weaknesses.
It is light sculpting, it is quick light painting. It is art, it is outlet. It can be protest, it may be affirmation. It may be nothing, or it may be more than one thing at once. It is sharing your point of view to the rest of the world, and expressing something concrete or open-ended, hoping to be in a debate that may last beyond your time on Earth.
So, in short, because I love photography.