This includes devices running iOS 8 and newer, and macOS 10.10 Yosemite and higher.
Select your name at the top of the screen, then chooseFamily Sharing.
For iOS 10.2 or older, go toiCloud>Family.

Tap your name again, then selectStop Family Sharing.
Confirm by tappingStop Sharing.
you could also disband a family group from yourMac:
grab the Apple menu, then chooseSystem Preferences.

access with yourApple ID/Apple Account.
If you don’t know your login details,reset your Apple Account password.
Select your name, then chooseStop Family Sharing.

you could do this on youriPhone,iPad,iPod touch, or Mac.
The same can be done from your Mac.
Repeat the steps above to remove yourself from the Family Sharing group.

The answer depends on where the content came from originally.
DRM restricts how you might use and share content (generally to prevent unauthorized copying or piracy).
These items stop working when the Family Sharing group is disbanded.
This covers the content someone else got from you and anything that you received from them.
Although that content can’t be used, it’s not deleted.
The content you received from sharing is listed on your gear.
it’s crucial that you re-purchase it using your Apple Account if you want to use it again.
If not, you’re able to delete it from your gadget.
If you madein-app purchasesthat you no longer have access to, you haven’t lost those purchases.
Download the app again to restore those in-app purchases at no additional cost.
Can’t Stop Family Sharing?
Stopping Family Sharing is straightforward.
However, there’s one scenario in which you’re free to’t turn it off.
That’s when you have a child under 13 as part of your Family Sharing group.
After you do that, you’re able to turn off Family Sharing.