If anyone can leave Facebook it's teens. Their social networks aren't developed/mature enough where they have to depend on other people's social network preferences. Most teens could literally leave on a whim and bring most of their friend with them. I still remember how quick the exodus from ICQ to MSN was (and nobody hated ICQ.. it just kinda happened).
Also when a teen tells you that they hate something because there's too much drama.. it means they fuckin' love it. They CAN leave but they don't want to because Facebook is so effective at stoking their out-of-control hormones. With Instagram in the fold this is especially true. As for why everyone else is on Facebook? Well it's because everyone else is on Facebook. And how else are you going to see pictures from your out-of-the-country relatives or creep on your high-school crush. I think Facebook has reached enough critical mass to not have to worry about becoming irrelevant for quite some time. For the record I don't use Facebook much myself, other than to keep a reminder of when everyone's birthday is.
Also when a teen tells you that they hate something because there's too much drama.. it means they fuckin' love it. They CAN leave but they don't want to because Facebook is so effective at stoking their out-of-control hormones. With Instagram in the fold this is especially true. As for why everyone else is on Facebook? Well it's because everyone else is on Facebook. And how else are you going to see pictures from your out-of-the-country relatives or creep on your high-school crush. I think Facebook has reached enough critical mass to not have to worry about becoming irrelevant for quite some time. For the record I don't use Facebook much myself, other than to keep a reminder of when everyone's birthday is.