How do I turn off restructions on an iPad so I can install apps?

Thanks for your reply.

In Settings > Screen Time > Content and Privacy Restrictions, the restrictions are on. And in iTunes & App Store Purchases, Installing Apps and Deleting Apps are both allowed. But I can't install the app.

When I turn off Privacy Restrictions and reboot the iPad, I get the same "Restrictions Enabled" message when I try to open the app from within the App Store.

I want to delete the app from his iPad, but there's no app icon on his desktop. It still exists in his App Store list of updated apps, but I can't launch it. Is there a way for me to delete it, given the strange situation I'm in? Would rather not wipe it and start over.

This is funny, and I'm curious to see if you're surprised by it, FoxFifth.

I followed the instructions on how to hide apps. There were a lot of apps I hid, so my son wouldn't download them. When I got to the Spotify app, I decided to try opening it. And it launched the app. Then I clicked the home button, and saw the Spotify app on the desktop. It launched from there, too.

I have no idea what I did, or why it worked, but I'm happy with the outcome!

Thank you so much! That's almost certainly the problem, and I would've spent the rest of the afternoon persisting with solutions that would never have worked.