I set my son up on my Microsoft account in order to play Minecraft. He now has his own...

I have similar issue.
When my son got an Xbox I set him up under my account; he was very young and I didn't want him to have his own account. Seemed best practice to set him up under my account.

He will be 18 this year, he now has a Microsoft account, and wants to have his Xbox account under his own Microsoft account.

It's absolutely ridiculous that Microsoft don't allow transfer between family members to account for kids growing up and wanting to take control of their own digital assets.

...He's playing on Minecraft. He does not need to sing in to play this. I suppose you mean log in and out from Microsoft account? Because if he's not logged in Microsoft account he still can play...

There should be an option to sign into his Microsoft Account in the Minecraft Game.

Without being signed in on his Microsoft Account in Minecraft, the game can't apply the online and privacy settings you set up in order to allow him to play online.

If he's only playing locally on his own device, he can play without a Microsoft Account. But in order to play online on Realms or Servers, he needs to be signed in on this very device in the Minecraft Game.

When I bought my minor son his first Xbox, I added the Xbox to my account and had my son sign in there to use it. He is now an adult and I want him to set up his own Microsoft account and move his Xbox to his own account. How do we do this??.

You can easily havr him create his own account and log into his xbox.

He will lose access to his saved games and anything linked to your account. They cannot be transferred to another Microsoft account, nor can his gamertag.

He would essentially be starting fresh on his account.

My son has his own account as do I. We have it set up as a family. Fortnite will load under my account but is showing the error if he tries to open under his account. Fyi, he’s already been playing yesterday and everything was operating as it should, same
time of day. Parental controls are set at default.

if your son has his own Xbox account then any purchases he makes will show in his order history, not in yours.

if your son's account is a child account you can set up parental controls so he has to get a parent to confirm purchases

https://support.microsoft.com/en-gb...count-require-kids-to-ask-before-buying-stuff