In the first place, why would this app even need to include their names and pictures? That’s begging for bad things to happen.

Let their parents assign some nickname or code name to the tags. The parents will know what that is. As opposed to some weirdo who steals your phone or some hacker who sells a db dump to pedophiles on the dark web.

If you own your own home, anyone can get your full name through property records. Is this really that different?