You can do the same thing with Facebook lists. Not everything you share needs to be sent to everyone. And if you're making plans for a specific event, like Than

You can do the same thing with Facebook lists. Not everything you share needs to be sent to everyone. And if you're making plans for a specific event, like Thanksgiving, that's kind of what Facebook events are designed to do. It also has the benefit of collecting all the event-related posts into a single location, something just sharing to a group of people wouldn't do. And yes, everyone might "have" a Google+ account, but if no one you care about ever checks it, then does it really matter?