It's worth noting that while Gizmodo says this feature is live today, we haven't actually found it available on any of the Google accounts we've tried. Of course, the company often rolls out features slowly so we'll have to see when the switch is flipped for everyone. But it's not a big surprise that this feature is about to go live -- it's been rumored for several months now.
Regardless of exactly when it launches, this will put the Google Play Store more on par with Apple's App Store, which introduced family sharing a few years ago. iOS users can currently share apps, movies, TV shows, books -- and purchased music, the one big difference between Apple and Google's implementation.