Facebook is a disaster waiting to happen to anybody and, especially any family with children old enough to understand how to get onto it. Kids love to talk and cannot keep their mouths shut. The more potentially dangerous a family secret is, the more likely they are to post about it. They’re also likely to post stuff about themselves, including sex pictures, that they will grow up to be horrified by. I use it only to see other’s pages and never post anything myself.
We had problems with one of our daughters on Facebook when she was 12. It took forever to get her account closed, because there’s a two-week waiting period to cancel, and she managed to get on it, somehow, in the period, more than once.
They make it as hard as possible to protect your children or enforce reasonable hours on your young adults. My husband set our router to shut off from like midnight to five a.m., and the ISP thought it was a mistake and kept rebooting the router and zotting the settings or something.
They’re like drug pushers. “We’re not doing anything wrong - just tell your kids to say NO!” and then when you try to control it, you CAN’T without going no-internet-ever.