Family sharing not working for all members

The suggestion did not work, as the open "Use Family Storage" was nowhere to be found.

I did however find a solution after trying a number of different things. I temporarily stopped sharing the iCloud storage with the family. When I started the sharing again, my daughter's iPhone finally found the shared storage.

I've already got the family sharing running and working for my wife and son, so I have that covered. The problem is that my daughter does use the shared iCloud storage. She do have access to a shared AppleTV+ subscription so parts of the family sharing does work.

Since I initially created the accounts for my children, my daughter always showed up as "not using" for the shared iCloud storage. This was way before I set up any restrictions in parental controls, so I fail to see how that is of relevance in this case.