Family Sharing and Location Services greyed out

My sons ‘find my’ stopped working and his Family Sharing and Location Services greyed out when I tried to get it working. A lot of fixes on here suggested screen time settings and restrictions was the reason, but these were also not switched on. Turned out to be a simple fix, as my son hadn’t accepted the new Terms And Conditions of using iCloud features. He accepted and hey presto it worked again. Of course we read the whole document first before accepting. (Not) 🤣