Altering your handle in your Apple ID is necessary to make sure that your account info is updated. It will provide help to obtain necessary updates and notifications from Apple, and it’ll additionally make it simpler so that you can entry your account if you might want to reset your password or make different modifications.
There are a couple of other ways to alter your handle in your Apple ID. You are able to do it via the Apple web site, via the Settings app in your iPhone or iPad, or via the iTunes app in your Mac or PC.