My kid routinely asked for access to Photos, which seemed pretty benign. Turned out she was screen recording entire Netflix movies and saving them in her Photos cache, not only bypassing every single restriction but also tanking my iCloud storage quota.
I believe the solution for kids is to install NexDNS and block most social media sites. It's not perfect, but works well enough in practice.
Nextdns has been amazing - a double bag, if you will.
Settings on Apple and then separate profile with nextdns too
Only to realize there’s a built in browser that you can bring up if the book embeds a link.
It’s a safari browser but under the rules of the Libby app.