> Mine are turning out fine. I don't want them to be like those other children, and I've kept them away from those children. Doesn't seem to have been a problem.

To each their own. I personally grew up with the idea of "try to be around all different types of people as I will encounter people from different walks of life, just don't be an idiot". I think, it made me a better person and I pride myself in my ability of getting along with most people. One day, I would want the same for my kids, and hope at that point we would resolve the social media issues.