Whats the point in face detection?

Question

And smile detection my camera has face detection and it seems pretty pointless.

Answer 1

Since point and shoot cameras have no manual focus function, "Face detection " is built in so the camera automatically focuses on the faces of people in image rather than the center of the viewfinder. The idea is to keep the face in focus as it is the most important part (it's the eyes, really) if you are shooting people close-range.

Answer 2

I guess it's for blind photographers who can't detect a face or a smile on their own

Answer 3

it's so when you are taking pictures of people you can get there faces perfectly focused

Answer 4

i dunno, to tell who you are i guess?