I never had social media myself and don't see the point, at least not the USA with how everyone it fights 24/7 or tries to cause problems for others or is just showing off.
But I know all to well about the danger of having it with a family like mine. When I was younger my mother caught wind of someone I was helping trough a support program for former foster kids who aged out and had no family, she assumed I was dating her... She was a few states over from were my family lived and she tracked her down on facebook and harassed the ####### out of her. With nothing more then a first name to go by... yeah. There was anther case where I had a few dates with someone in anther state too, I never told anyone about it as it was just a few dates and we were not a match, apparently someone in my family found out about it online and they harassed the girl so much she went to the cops, they even harassed the staff at her workplace and that led her to losing her job. And the crazy thing is she never posted a single photo of us online, just said she had dated someone with the same first name as mine in a passing public post. There was even a point in time where they went on dating sites and told women not to talk to me and spread rumor about me being menially ill going as far to make fake profiles of me...
My life is far better not having them in it anymore and I'd like to keep it that way if you can't tell.