Paid Live on Parents account but not showing on childs account

On the 360 each account has to have it's own gold subscription.

Hi. My name is Brilliant, an independent advisor. I am happy to assist you today.

Parent and child accounts on Xbox are designed to help parents manage their children’s gaming activities. A parent account is the primary account that can create and manage child accounts. Child accounts are created for children under the age of 18 and are linked to the parent account. The parent account can set up parental controls, such as screen time limits, content restrictions, and spending limits, for each child account.

You cannot change your account to be a child account. You will have to create a new account for your child.

To create a child account, the parent account must first create a family group. The family group can have up to six members, including the parent account. Once the family group is created, the parent account can add a child account to the group. The child account will be linked to the parent account and will have access to the parent account’s Xbox Live Gold subscription and other benefits.

I hope this helps.

I checked the issue with Microsoft Account tech support, and they sent me back here.

On their end everything work as expected: my parent account and child account are properly connected, I see the child account under the parent account, can set the permissions for the child account.

But apparently the parent-child accounts relations are not propagated correctly to the Xbox LIVE system.

If there is no parent account attached to the child account, then it will prompt the child to link a new parent account before it will allow to sign into Live... if it doesn't and there is no parental account, then the child account sounds like it's actually
an adult account... either way, in this case the first thing I'd try is to delete the profile or profiles and then, using the WLID and password, redownload the profile...

The reason you have two accounts come up is one is the parent account.

You'll want to check for sure which is the parent and which is the child. Try signing into your gamertag on the console and go to the setting hub (not through the guide menu) and select the family panel. If this account is the parent, it will show the child
account. You can select the child account and remove from family. That'll get rid of the second account.

If you do not see the second account in the family panel, that means your primary account is the child account and the email is actually tied to the parent.