Dav091 Said:
"How to permanently disable the 'Hide my Email' feature?: I hate hide my email. I am an adult and capable of deciding for myself if I want to use my own email address. How do I permanently disable hide my email.?"
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Troubleshooting Hide My eMail:
A. Permanently Disabling Hide my eMail:
You can't. This is part of Apple's account settings.
B. Making Preferential eMail Address:
You can't. Apple makes random aliases on their own part. Once you create an iCloud eMail address it cannot be modified.
B. Give Apple Feedback on This:
Let Apple know that aliases should be allowed to be changed to what you decide. Refer to the following User Tip, on how to give them feedback on this. Go Here: Apple ID: How to Provide Apple Feedback for this Category - User Tips