The family sharing seems like a good idea, but it seems like you can't share everything. Please correct me if I'm wrong (that's why I'm writing), but I've read that iTunes match does not share to other accounts on Family Sharing. So I could hand my wife a CD, but she does not have the keys to the music locker. And I'm guessing it's the same with iCloud storage. It would be great if we could share the larger plans, as the small plans are a bit too small. Again, please correct me if I'm wrong.