Like digital cameras. Before digital cameras not many of us could afford to give the camera to our kids and say, "Snap away!". So the photos you get with a digital camera are very different! I have lots of photos of feet. (Something pioneered by Mr 19 when we got our very first digital camera and a tradition now carried on by Miss 11!) We have lots of photos of teenagers looking in the mirror too. (It is their natural habitat, after all.)
We also have a lot of self-portraits taken at arms length. Think this is easy? It's not. My children have to practise this a lot. That's why they need cameras in their phones. So they can practise the art of the self-portrait. (It is a legitimate art form after all!) Mostly I love digital cameras because you don't feel constrained by the question, "Would this be a good photo?". You just click, and click, and click! And you capture more of real life than you do when you're pondering questions. I love the realness of digital cameras. Of course, I only think they're real cause I don't have photoshop. But that's a whole other discussion!