I sign into facebook every day. I follow my kids' (all adult) threads, and my nieces and nephews. I get to see all the current family pictures and hear little snippets of their lives. We post info about family gatherings, pray for each other, celebrate things I wouldn't even have heard of.
I am particular about what I post in my info. No contact info except email. A little about my hobbies.
I like the fb games and play them when I can't sleep. I "hide" the scores, etc., from games I don't play so I don't get 6,000 posts every day.
I am a BabyBoomer and a lot of my generation are using it. My kids and grandkids- on there all the time.
Once I learned how to "block" junk I didn't want, I enjoy it very much.