When an interest reaction by a child is detected based on input data from a child camera (25) and a child sensor, an HCU (1) identifies an attention object that is something outside a vehicle that a child shows interest in based on the child's line of sight information and an image of a vehicle-external camera at the time of that detection. The name, type, characteristics, etc., of the attention object are acquired from a server (5) and presented to the driver and the child. Information about the attention object is saved in a server, smartphone, etc., so that it can be referenced later.
ATTENTION OBJECT SHARING DEVICE, AND ATTENTION OBJECT SHARING METHOD