You can get more visibility into your teen's whereabouts through these location sharing features in Family Center:
Live Location Sharing
In Family Center, you can send a request to your teen asking them to share their live location. If they accept, you’ll be able to see their location in Family Center and on the Snap Map. You can also share your location back to keep your teen in the loop.
Travel Notifications
You can set a notification for when your teen arrives or leaves a specific location. In order to set this up, your teen must be sharing their location with you. From there, tap ‘Place Alerts’ at the bottom of the map in Family Center, then tap ‘Add a Place.’ Once the place is added, you can change the toggles for when you want to be notified.