App to make people more aware of their surroundings

An app that utilizes your Smartphone camera to notify you that you are unaware of your surroundings.<br><br>Would you use this? Either an app that runs in the background and sends you notifications, or an app that you start like Instagram.<br><br>I'm not sure if it works. But I was thinking that if you track your face or something, if you are focused in one direction for an extended period of time, then the app would alert you and remind you to be more aware of your surroundings.<br><br>It's funny that it seems like everyone is in their own little world already, but I just got off a bus and noticed a group of people standing next to a bus stop, and everyone is looking at their phone, not one person is looking around them and taking in their environment. I see this everywhere all the time. And it's getting worse and worse.<br><br>Now on one hand I'm concerned about my own awareness of my environment, but on the other hand it seems like everyone else doesn't care about their surroundings so I should be more aware of mine.<br><br>But I think this app could help people become more aware of what is going on around them, and maybe bring them back to reality and out of their heads a little bit.<br><br>I don't know if this has been done before, so if it has then please send me a link.<br><br>Let me know if this is something you would use, and if you have any suggestions as far as this app goes.<br><br>The main thing to consider is to be able to track the direction that your face is looking, and then use the camera to determine if you are looking at your phone, and if you're looking at your phone for more than a certain amount of time, then you would get a notification to be more aware of your surroundings.