I'm level 36 and it's enabled for me when I switched on this morning. DD is 29 I think and it isn't on for her yet.
BTW just a shout out to apologise for lack of gifts from both of us, my MIL was taken ill at the beginning of the week and PoGo has gone somewhat out the window. We're hitting stops when we can but obviously its not as much as we'd usually do.