I want to request something like being able to change the email address without deleting...

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.

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.

do not delete the Microsoft account you want to change the primary alias then delete the old email address you no longer have access to

My understanding is that it is impossible to delete an old outlook/live/hotmail email address without deleting the entire Microsoft Account!

Microsoft have not implemented a system like Google. For example I managed to delete my Google Mail address from my Google Account and attach a non Gmail address.

Microsoft doesn't let you delete a Outlook email individually from your Microsoft Account. Point I want to know is whether changing the primary alias to the Xbox Live gamertag profile and then deleting the MS account will work?

I watched this video last night on youtube this guy says it is not possible. So who is right? :S
https://www.youtube.com/watch?v=2ZxN8XeYmts&t=222s

I never talked about merging accounts. All I was asking is whether a gamertag can be moved onto another account that does not have Xbox Live? For example can an Xbox Live gamertag profile be moved to a different email address from the present Microsoft
Account (email) and then be able to safely delete the Microsoft Email address without it erasing the Xbox/GFWL profile?

If that's not the case the system is pretty terrible. People are complaining on the video above that I posted that their Xbox Live profile was assigned to their mums/dads emails and they wanted to transfer it to their email, but they are saying this is not
possible and that it was only once possible on the Xbox 360. But since I don't have an Xbox 360 I don't know how else to transfer a gamertag profile into another email.

I would like to delete my live.co.uk email address due to email spams. There seems to be no way to individually delete that email address from the Microsoft Account without deleting the entire Microsoft account along with email, one drive, skype, etc. I will
obviously lose my Xbox/Games for Windows Live achievements, game licenses, etc.

I was asking whether there was a solution to this problem. Otherwise I will be permanently doomed between sacrificing my Xbox/GFWL profile over an email address being bombarded with email spams. Or alternatively I bite the bullet and delete everything. Obviously
I don't want to have to delete my entire Microsoft Account and start from scratch.

Accounts cannot be deleted once they are created. You can change the email address on the account to something else in order to use it on another account. For your safety do not post personal info like email addresses on the forums.