If you have an Apple ID, purchased an app from the App Store, purchased or played a tune in Music, registered an Apple Device, sent an iMessage (as opposed to an SMS/MMS text), or activated Find my… on any Apple device; you have an iCloud account including 5GB of iCloud storage space. The net cost to you for all of this is $0.00.
"All you've got to do is own up to your ignorance honestly, and you'll find people who are eager to fill your head with information" --Walt Disney