I think I agree. Mine are all adults with kids of their own. I friend anyone of them who asked. But then if I get to a ‘too much info post’, I just click on don't see any posts. One of my d-i-l’s uses language I'd prefer not to be on my page, so I just don't see her posts and check her wall occasionally. Pics come across because they share them with each other and eventually they get to me.
I didn't do it to be nosy. It is a great way to make contacts. They will short answer a FB post before they will respond to an email.