Why is the App Store not showing up on my iPhone?

I’m thirteen and have never freely had the App Store. My mom is now allowing me to! She put in the screen time password so I was able to download apps, but the App Store never popped up! Can someone tell me why? ( also yes, I have restarted my phone, went into the App Library, and dragged it down from the search bar)

[Re-Titled by Moderator]