Who do you expect to be your Facebook friend?
When I look at people who have 1000+ friends on Facebook, I have to wonder- do they really care about all those people? Or do they just "friend" everyone they have ever met? We are, by nature, nosey people. Facebook feeds that urge, it lets us know the details and photos of anyone we have ever met- just be "friending" them. Would you really know and/or care what the person who sat next to you in 9th Grade History is doing if it weren't for Facebook?
I guess all of this stems for the question... Do you expect to be "friends" with your child's teacher? Principal? School secretary? When I was teaching, I didn't friend students or parents unless I had a relationship with them outside of the teacher/parent/student realm. Not that I post things the general public couldn't know, I just felt that my private life was just that- private. And I really didn't want to know every thought, photo, etc. that went on in their lives. There is something to the saying less is more.
However, the new job has opened things up. Am I expected to be friends with parents from my school? People I may have never met or only once?