Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
What i ended up doing was re created my kids emails as close as I could get away with. Making sure this time to record the password safely in a password locker/manager, i set up two factor authentication and keypasses to my Android phone so I have 3 steps of safety and backup. While I had my kids accounts logged in I also made sure to have backup accounts set to my account and linked everything to family safety.
I also raised a formal feedback complaint that this process needs to be looked at and changed for recovery of children accounts not that it'll actually be looked at.