Why Microsoft's "family sharing" plan makes sense for publishers
There are plenty of places discussing the exact details of Microsoft's new "family sharing" plan for Xbox One. Even if we assume the worst possible interpretation of Microsoft's statement, the policy still seems incredibly consumer-friendly. So much so that it is difficult to see why publishers are allowing it. I want to point out why this makes perfect sense for publishers.
Think about it. If my entire game library is being shared with all my closest friends, I am going to feel a little guilty selling my used games. At the same time, I am going to ask my friends to hold onto their games a little longer so I can play them.
This sytem creates significant peer pressure not to sell your old games so that your friends can play them. There is also peer pressure to build an awesome library of games. Nobody wants to be that guy that only has two games in his library at a time.
When you think of it that way, this policy will do more to end used game sales than any DRM policy could. In fact, because most new games appear to be mostly multiplayer only anyways, this will encourage people to try games and then buy their own license so that they can play together. I bet Microsoft convinced publishers that they will actually come out ahead with this kind of system, and I think they will.