I joined a Microsoft family to use an M365 license. Somehow, the owner of the license added me as a minor. This means only the organiser could remove me from the group. Now, the license has expired, and I cannot remove myself; I am stuck with the family forever. I can't get a response from the organiser, and Microsoft support confirms that only the owner can remove a minor from a family.
When joining a family license, make sure you are not a minor and do not give consent.
Call Microsoft. Explain that due to Domestic and Family violence you have no contact with the former family member and it is triggering you. Explain they must remove you from the group.