shut up

And whether there is haranguing involved or not, the rebels say their no-Facebook status tends to be a hot topic of conversation — much as a decision not to own a television might have been in an earlier media era.

But the peer pressure is only going to increase. Susan Etlinger, an analyst at the Altimeter Group, said society was adopting new behaviors and expectations in response to the near-ubiquity of Facebook and other social networks.

“People may start to ask the question that, if you aren’t on social channels, why not? Are you hiding something?” she said. “The norms are shifting.”