It's old but it was one of the first hits
https://www.pewresearch.org/internet/2010/04/20/chapter-two-...
How teens communicate might have changed but I'm guessing the relative amounts show girls still use it more.
I firmly believe that at some point those same people will embrace full eye AR (not phone AR) as a preferred or common way to communicate over all current methods. Further, I believe that once it's possible for them to do it easily without cumbersome equipment that AR will become mainstream.
It's clearly years out but the fact that I can carry a tiny and relatively light computer on my wrist with display (a smart watch) suggests it might not be that far off to have stylish glasses with similar tech at a price people will pay for once the applications make it clear they want it.
If you asked in 2007 how many non-techies wanted a PDA the answer would likely have been close to 0. Now the answer is close to 100% of them carrying one at all times. I think AR will be no different. What has to happen is they need to go from the bulky Apple Newton level tech of today to something light and useful.