Not receiving app request from childs device

Hey there roxann211, 

There is a helpful resource to help address Ask to Buy issues.

If Ask to Buy isn't working   

"Review your Family Sharing settings

If you're the family organizer, you can go to your Settings or System Preferences to see if your family members' accounts have Ask to Buy turned on. 

On your iPhone, iPad, or iPod touch

1. Go to Settings.
2. Tap Family. If you don't see Family, tap your name, then tap Family Sharing.
3. If you're the family organizer, make sure that Purchase Sharing is turned on. Then you can tap a family member's name to see if Ask to Buy is turned on for their account.

On your Mac

In macOS Ventura or later:

1. Choose Apple menu  > System Settings.
2. Click Family.
3. If you're the family organizer, click Purchase Sharing and make sure that Share My Purchases is turned on.
4. Click a family member's name, then click Ask to Buy to see if it's turned on for that person. 

In macOS Monterey or earlier:

1. Choose Apple menu  > System Preferences. 
2. Click Family Sharing. 
3. If you're the family organizer, click Purchase Sharing and make sure that Share My Purchases is turned on. 
4. Click Family Sharing and click Details next to a family member's name to see if Ask to Buy is turned on for that person.

Check the Apple ID that you're using for purchases

Make sure that you're signed in to the App Store, iTunes Store, Apple TV app, Apple Music app, or Apple Books using the same Apple ID that you selected for sharing content with your family. Learn how to use your own Apple ID for Family Sharing.

On your iPhone, iPad, or iPod touch

In iOS 16 or iPadOS 16 or later:

1. Go to Settings > Family.
2. Tap your name. 
3. Make a note of which Apple ID is listed.
4. Tap Purchases.
5. Tap Apple ID for Purchases and make sure that you're signed in with with the same Apple ID that you use for Family Sharing. If not, tap Share using secondary Apple ID and enter the Apple ID and password for that Apple ID. 

In iOS 15 or iPadOS 15 or earlier:

1. Go to Settings, tap your name, then tap Family Sharing. 
2. Tap your name.
3. Make a note of the Apple ID that you're using.
4. Go back to Settings.
5. Tap your name, tap Media & Purchases, then tap View Account.
6. Make sure that you're using the same Apple ID."

Have a good one!