why can a parent add money to their child’s Microsoft account

Hello, Tyler!

Did I understood correctly that you are trying to add money to the child Microsoft account and you can't do it?

Or is it that you don't want to have this option?

Cristiana

Not knowing exactly how you have things set up I'll assume your childs account is under parental controls. As such you may need to approve any purchases on the child account using the parental account if you have Ask a parent enabled on the Xbox.

https://support.microsoft.com/help/4047310/microsoft-account-require-kids-to-ask-before-buying-stuff

As for adding funds

https://support.microsoft.com/help/4027024/microsoft-account-add-money-to-your-childs-account

I'd double check you're signed into the parent account when attempting to add money to the child account, as for the error you're seeing it could be a number of things.

If you still have problems please post the error message or code you're seeing and without a doubt someone can help further.

I want to clarify that Minecoins are purchased in-game through the Minecraft Marketplace and are not purchasable through the Microsoft Store. You can only redeem codes for Minecoins in the Microsoft Store.

I suggest following the steps on the following page for an alternative to add money to your child's account:

https://support.microsoft.com/en-my/help/4027024/microsoft-account-add-money-to-your-childs-account

No, the Minecraft Store redirects the user to the Microsoft Store.

The parent gets the email request for permission from the Microsoft Store not the Minecraft Store.

Following the above steps I get this also error PUR-PrerequisiteProfileMissing regardless of whether I try and add money via a desktop browser or mobile phone browser.

This is for Minecraft on the PC & there is no avoiding the Microsoft Store which cannot cope with online payments.

Parental Consent Why you're being asked for parental consent

If the date of birth on your Microsoft account shows that you're under a certain age, Xbox is required to request parental consent for you to use Xbox Live.

If you're an adult, but you got a message asking for parental consent, it's because you're a child in your Microsoft family.

Solution

If you're of an age that requires parental consent, follow the steps on your Xbox to have your parent sign in and add you to their Microsoft family.

If you're over the age requiring parental consent, have your parent remove you from the family. They'll have to sign in to
account.microsoft.com/family, select your profile, and select
Remove.

If you're unable to clear the message, contact Xbox Support.

Related Issues
Parental consent and Microsoft child accounts

Definition of a Microsoft child account

A child's account no longer appears in your family on Xbox One

Only a parental (adult account) can change the privacy settings for a child account. Your parents should open an adult account and add your child account to it.