While Facebook started with teenagers/young adults and spread to adults, Twitter is growing in the opposite way:
Adults started with it, and now it is growing among teenagers. As related in the FT:
Twenty-four per cent of online teens surveyed by the Pew Research Center now use Twitter, up from 16 per cent in 2011, and higher than the 16 per cent of online adults who use the site.
“Adults were the first to colonise Twitter,” said Mary Madden, one of the authors of the new report. “However, teens are now migrating to Twitter in growing numbers, often as a supplement to their Facebook use.”
Despite its popularity, maintaining a Facebook account is sometimes seen by teens as an obligation or even a burden, while newer services are more appealing, in part because they are “less social” or because parents are less likely to be there.
“Yeah, that’s why we go on Twitter and Instagram,” said one 19-year old survey respondent. “My mom doesn’t have that.”