"You can enjoy photography as a relaxing hobby and as a way to express your creativity. With so much of life only being seen once, being able to capture moments and then view them at a later time is a wonderful tool for reflection. As the saying goes, “A picture’s worth 1000 words."
Above all else, photography is an art form meant to be enjoyed. Use photography to create memories that last a lifetime, reminding you of places you’ve been and people you’ve known. Always have fun taking pictures, and remain enthusiastic to learn new skills."
I hate using the term the 'average' person. But when it comes to Photography, knowing how an external flash can either help or not help what you are trying to shot, can be beneficial.