User behaviour when taking photos

Have you noticed how people now a days always hold the camera in front of their face (between 20-40 cm)? On our recent summer holiday in France a friendly person offered to take a picture of the whole family (normal photographer included), and he did exactly that. Problem is, we've got a digital SLR camera, which means that you can only view the picture on the screen on the back AFTER the photo has been captured. He never even thought of putting his eye to the finder on top of the camera. 10 years ago this would never have happend. Interesting how our habits change due to usage patterns without us even noticing.