Please take the time to review these linked articles and protect yourself and your children from the exploitation of leaked location data and the evil that comes with that practice.

https://nakedsecurity.sophos.com/2017/06/26/snapchat-starts-sharing-your-and-your-kids-location-turn-it-off/

https://www.welivesecurity.com/2017/06/26/enable-ghost-mode-snapchat-now-want-keep-location-private/