The problem with having kids answer doors is that the peephole is too high, which means they don't know who they're opening the door to, and the 'Who Is Out There' Peephole by Hyun-june Yang aims to make a difference when it comes to this crucial bit of home safety.
The Who Is Out There Peephole is a genius design that every home can benefit from if there are children under the roof. The idea is to offer a second viewing display at the bottom of the original one so that the little ones can see who's on the other side. In other words, the design utilizes the principles of a periscope often used in a submarine, only this time, it's for the home. The lower peephole functions as a one-way mirror that makes this concept possible.
This is still a concept, but hopefully it'll make its way towards families soon.