Re: Don't know if I'm alone on this, but I'm of the opinion
"Teens are nothing if not extremely gossipy [...]"
IIRC in the days of black & white wind-blown copies of "Health & Efficiency" - the playground was the clearing house for older pre-teens too.
I am amazed by how many of the neighbours' toddlers are already quite competent at using a smart phone or tablet. You see them gathered round the communal garden table with their pre-teen siblings. No doubt they have quickly learned how to hide things from adults. Kids are the natural learners in the human race.