How do I not share storage with family sharing
With family sharing how do I limit storage sharing
Question marked as
Top-ranking reply
The only limitation of your iCloud+ storage is the extent of your plan, which is to say 50GB, 200GB, and 2TB.
Within a Family Sharing group all the members share the space equally - but privately - and there is no limitation on what they can do with this space.
If you are finding that your current plan does not give you enough space then you need to step up to a plan with a larger storage capacity.
See
Share iCloud+ with your family