It's extremely easy to disregard and disable any mention of your iCloud email address. You can set an apple id's email itself in settings -> user -> "name, phon

It's extremely easy to disregard and disable any mention of your iCloud email address. You can set an apple id's email itself in settings -> user -> "name, phone numbers, email" which changes what nearly every part of the OS refers to. I forgot I even had one until I read this comment.