How do I add a second person to my iPhone's Family sharing?

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On your iPhone, iPad, or iPod touch with iOS 15 or earlier

1. Go to Settings.
2. Tap your name, then tap Family Sharing.
3. Tap Add Member.
4. If your child doesn't have an Apple ID, tap Create an Account for a Child. But if your child already has an Apple ID, tap Invite People. ... 
5. Follow the onscreen instructions.

12-Sept-2022

Set up Family Sharing - Apple Support

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Yes, you can add a family member in iOS 16.1.2. Are you not seeing the icon in the upper corner of the screen that you tap on in order to add another member?

On your iPhone or iPad with iOS 16 or later

1. Go to Settings.
2. Tap Family. 
3. Tap Add Member .
4.