According to a number of web-pages, including, National Day Calendar, (AKA NDC), June 29th (which is today) is National Camera Day. One of the things NDC states is "... This day commemorates photographs, the camera, and their invention. A camera is an irreplaceable tool used to record and replicate memories, events, and people/places..." I find it interesting that NDC considers one of the purposes of is to "replicate memories..."
Many of my childhood experiences of being photographed for a family picture seemed be that the intent behind the camera wasn't replicating a memory of what was occurring, rather, it was to creatue an ideal which wasn't there.