Street photography for the sake of what?

Why do street photography? Some thoughts:

1. First of all you do it simply because you like doing it. In someways you don’t have to think too hard about it.
2. The second one is that a very productive artistic outlet. This means that you can kill many birds with one stone. For example, the joy of just walking around the city, making photos, etc. Street photography as a virtuous social experience.
3. Third, you create art things that can inspire and motivate other people. In some regards, I feel that all humans desire to affect, influence, and impact other human beings, the world and society.