Hello Nicole,
If the birth date on a Microsoft account says that it belongs to a child, there are different steps to take in regions such as the United States of America and the Republic of Korea, and other regions that regulate what children can do online. Here is what we can follow to change child's birth date:
- Using the parent's Microsoft account, sign in to your Family page on the Microsoft account website.
- Select Manage my child's profile info.
- For the child’s account that you want to change, select Edit this child's personal info and then follow the instructions.
For additional help, you may find the instructions to this question by following the links below:
Sincerely,
Zenitsu | Microsoft Community Moderator