You can only be part of one family at a time, and you can only switch to a different family group once per year.
To create your child's Apple ID, head to Settings > iCloud > Family > Create an Apple ID for a Child.
Enter your child's birth date and choose a username for their Apple ID account. It's important to store this information somewhere secure, because you won't be using it often and will likely have a difficult time memorizing it.
After choosing a username and password, you'll be asked to choose a series of three security questions. Again, it's a good idea to take note of the answers.
Finally, you'll be asked if you'd like to share your child's location with your other family members. There's no need to add children under the age of 13 to your Family Group, as they are automatically added when you create their Apple IDs.
Hiding Content from Family Sharing
Family Sharing is awesome, until it's not. Downloading a song with explicit lyrics is okay for an adult, but you might not allow your 8-year-old daughter to download that song. That's where hiding purchases comes in. You'll need to use iTunes installed on a Mac or PC to hide and unhide your purchases.
To hide certain purchases, open iTunes and find the Store menu on the top left of the screen. Click Store > Sign In and enter your Apple ID and password.
On the right side of your screen, you'll see a link to your purchased content.
Once there, hover over your content and click the “X” in the upper left corner to hide it from Family Sharing. Hiding your content will also remove it from the Pur- chased page, and you won't receive update notifications about that content anymore.
You’ll be asked to answer three security questions to verify your child’s account at a
If instead of seeing Sign In, you see View Account, that means that you’ve already logged into iTunes.