In the 1950's, the average family camera was a Kodak Brownie. It was good enough and easy to carry around for those special occasions that required pictures. Serious photographers were using expensive 35mm and rollfilm cameras the average family wouldn't consider using.
When digital cameras came along, the average family camera was a digital point 'n shoot. They were good enough and easy to carry around plus no one had to pay the drugstore guy for printing the pictures. And they could email the relatives pictures of the new baby or the recent vacation. Serious photographers were using expensive DSLRs and other esoteric cameras the average family wouldn't consider using.
Now that digital photography has been around a while, the average family camera is their smart phone. It's good enough, it's always there and it's easier do the things with it they like to do, like send pictures of their breakfast to Instagram. Serious photographers are using expensive and advanced digital cameras the average family wouldn't consider using.
Full circle. What goes around comes around. Is anyone surprised...really?