I care, I'm not lazy. DD (9) has a FB page.
I control it, she is only allowed on it when I am sat with her when she prizes my cold bony hands from MN and she only has family on. She did start to ask for school friends and their older siblings to be added - I let it initially but then after checking up on these people realised their parents were not necessarily as strict as I am in regards to controlling FB access.
She is also under strict instructions to not add anybody, regardless of whether she knows them, without my permission. Family friends are off the menu as I do not think it is fair for them to have to watch what they say/post if they have her as a friend. I have told them not to accept requests, not that she would add them.
Her privacy settings are as high as possible, I check her activity (there is a section that records all activity for under 16's) after each session.
She goes on about once a week for 20 minutes and then gets bored and goes onto Moshi Monsters and has much more fun.
I would rather FB wasn't a big secret that was kept from her, I hope she realises that it is actually very boring and it's only use is to keep bored mothers entertained when MN is offline 