Screen time age limit

Hi Concerned_momma,

Welcome to the Apple Community, where some of us do our best to help each other.

Apple support have an article online for setting up screen time on a family member's device:

Set up Screen Time for a family member on iPhone

https://support.apple.com/en-au/guide/iphone/iph7f15d92dd/ios

You have likely set up your 13 year old's screen time through "Family Sharing ?".

If so, there are links in the above article that may be useful.

Cheers :)

This guide is helpful too https://support.apple.com/families-and-kids. You can continue to set up restrictions on a device for a child 13+