Unable to approve app downloads on child's iPhone with Family Sharing account

Hi everyone,

Yesterday I created the child's account on her new iPhone. Also I created the Family account. I inserted all the information and tried to download different apps on her phone. The system redirected to ask the parents for downloading but I couldn't see anywhere these requests, so couldn't approve them. My question is how I can download the nessassary apps? Thanks a lot for your attention and advice 🙏

[Re-Titled by Moderator]

Original Title: childs account