Go to OSX Daily to read How to Delete a Child Account from Family Sharing
Are you trying to remove a child from your Family Group? If so, you may have noticed that the option to remove a child account isn’t available in the Family Sharing settings menu. However, there are a couple of workarounds if you really want to get the child account user removed.
Apple doesn’t allow users under the age of 13 to create a regular Apple account. Instead, they’re forced to use a child account that can be created with consent from a parent or legal guardian. With Family Sharing, parents can make a child account easily on their Apple devices…
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