The first thing that happens when joining a new company is that everyone sends me Fb friend requests.
That said, it looks like Slack is doing a great job of replacing email for in-office communication.
It seems very customary to add at least everyone on your direct team to Fb though.
We joined Facebook in the early days when you needed a .edu email address to join, so I've got a lot of college partying photos up there. I've always seen it more of a private space. Not sure if the time you join and your original perception of the service changes your use.
Wise choice, although I'm sure she has other ways of seeing what you get up to.
I see my coworkers for approximately 1/3 of my entire week. If I have a question for them it can wait until tomorrow/Monday. I have nothing to gain by them having access to photos of me at a bar with friends or pictures of me at a half marathon or something.
That said, I've long since resigned myself to the fact that I'm probably a rather poor representative of this generational group in which my birthday happens to fall.
This seems like an often repeated claim that has never really been proven in any meaningful way.