It's not though, completely removing social media from children is also a problem because it's become nearly impossible to socialize without it... kids almost universally have social media access, so to tell yours that they can't have it ostracizes them in a lot of ways. I'm worried that completely limiting access to it is worse.
I can relate to this with my own kids because I grew up with a kid who wasn't allowed to watch TV, his family didn't have one in the house. I saw this kid on my school bus daily, but I don't even remember his name because my friends and I were always talking about TV and video games and weren't emotionally competent enough to know how/why to include him. I'll forever remember him as "the kid without a TV."