Hello Thanakrit Sriharuthai,
Thanks for reaching out here in the Microsoft Answers Community.
Based on the situation, it is likely that either your Microsoft account is not an adult one, or the birth date has not been set.
Please go to the Microsoft account's profile page, and see whether the birth date is set. If not, please select the "Edit profile", and edit the birth date. Wait a few hours to allow the account information to update, and see whether the issue persists.
Please let us know if these steps help.
Best Regards,
Sheng G. - MSFT | Microsoft Community Support Specialist