Wanting to change email address on my account. (Without deleting original email)

Keep this in mind if you are doing this because you originally used your email address and want to change it AND the email address is a MS server email (Hotmail, outlook, MSN, live) email address if you change it and remove that email from the account
you will NO LONGER have access to that email it will be deleted from the system and you will not be able to get it back.

My daughter plays Minecraft under her brother's email address.

My son plays Minecraft under my email address.

Both children want to use their own email address without losing their profiles.

I don't understand how adding an alias will work. I don't want to delete my Microsoft account. I want to change the email associated with Minecraft only.

the microsoft account is the email and xbox account, if your parents used their account to create your xbox account then they still own that account, changing the primary email and deleting their email address just basically means changed your parents email address and if they had used their original address to sign into other services across the net then you have just broken all of that.

as you changed the email address the email inbox will still belong to them and they will still receive emails.

you need to create your own account.

I changed email addresses from the original one that I used when I set up my Microsoft account to a new email address. I believe that I did change the alias to the new email address. I made the new email address the primary alias and the old email address the secondary. I will be deleting the account associated with the old email address soon and it will no longer be supported after I do that.

Thank you very much.

To remove two emails in the same Microsoft account by separating them, the steps are generally:

Create a new Microsoft account with one of the email addresses you want to remove.

Sign in to the original account and find the account settings.

Find the option to add or remove email addresses and remove the email address you want to separate.

Transfer any important content or information from the original account to the new account, if necessary.

Close or delete the original account associated with the removed email address, if desired.

It's important to note that these steps may vary depending on the version of Microsoft and the configuration of your account.