Changing an Icloud account on your phone
I want to change my Icloud account on my phone, but my other family members are using it too. If I delete the account on my phone, will it affect them and their phones too?
iPhone 11 Pro
Question marked as
Probably not but it means you will lose control of your account should one of them try to delete something. Apple straongly recommends each user have their own Apple ID to avoid this kind of issue.
https://appleid.apple.com/faq/#!&page=faq
Can I share an Apple ID with someone else?
Your Apple ID should not be shared with
anyone else. It provides access to personal information including
contacts, photos, device backups, and more. Sharing your Apple ID with
someone else means you are giving them access to all your personal
content and may lead to confusion over who actually owns the account. To
share purchases, photos, a calendar, and more with someone else, try Family Sharing Opens in a new window., iCloud Photo Sharing Opens in a new window., or other easy-to-use sharing features.