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.
I’ll give you a hypothetical. Let’s say there’s a couple with kids who’re on FB and the husband is involved in some very delicate employment negotiations and the wife shares some confidential stories about her boss with while the kids are eagerly listening to those frightfully sensitive conversations. Then the little darlings, to show how cool they are, promptly disclose everything to the whole world over FB. BANG! Goes their livelihood.
Also, as a retired lawyer, the first thing I’d do to a client’s adversary would be go to that person’s social media, and his kid’s just to see what silver bullets might just be lying around