How to change Family Sharing organizer role
Set up my granddaughter phone she now shows to be the Organizer for the family share. How do I change it back to me. I have tried everything google told me.
I'm afraid, the organizer has to stop family sharing for all members, and you will have to start a new Family group.
Have a look at the in-depth answer by Limnos in this older discussion:
Can I change organizers in Family Sharing… - Apple Community
And also check the article about it:
How to leave or remove a member from a Family Sharing group - Apple Support