My understanding about the 'family' sharing is that only one family member, other than yourself, can play at the same time. Still, I see the appeal.
Yep, that's what Phil Spencer said. But it's a moot point now. I was also hoping that the DRM policy (which was essentially the same as Steams, with the added advantage of family share) would encourage bigger digital "sales" (as in 'this week, 75% off!!!') like are the case on Steam all the time. Hopefully that's still a possibility since every title is supposed to be available digitally.