Changing your address on your Apple ID is important to ensure that your account information is up to date. This will help you receive important updates and notifications from Apple, and it will also make it easier for you to access your account if you need to reset your password or make other changes.
There are a few different ways to change your address on your Apple ID. You can do it through the Apple website, through the Settings app on your iPhone or iPad, or through the iTunes app on your Mac or PC.