iCloud Storage family sharing
How to share the monthly payment of the iCloud storage through the family sharing subscription can one person pay for all three of us to have that ICloud storage to share
iPhone 8, iOS 15
The family organizer can subscribe to a 50GB or larger iCloud storage plan and then share that plan with the entire family. See the following Apple Support article for information on sharing iCloud storage: Share iCloud+ with your family - Apple Support