> In my experience every single teen I know is on Google+ and not facebook, while the older parents are on facebook.
The only few people I know on Google+ are hardcore google fans who work in tech. Every teen (~15-18) I know is on facebook. And their younger siblings.
Plugin, Facebook Messenger seems to be quite dominant across those age groups too.
Why do you say that?
In my experience every single teen I know is on Google+ and not facebook, while the older parents are on facebook.
Some of the teens also have facebook, but none don't have Google+.
This is because of two reasons: 1: Gmail means they all have Google+ accounts almost automatically, and 2: The privacy controls are much better in Google+, and they like that.