If you go back far enough. I think in part we see forums through rose-tinted glasses. Moderation was looser than people are accustomed to now, and I've seen several taken over by conspiracy nuts. Some still make friends online almost the exact same way, using discord or whatever. I've been a part of communities, but never made "friends" online. The idea is a farce to me.
I was an "always-online" teenager. That was a mistake, but I didn't know then, Neither did parents. Just as no one knew that frequently watching pornography could lead to problems. Internet access and culture led to a brave new world.
You can pin certain issues more specifically to modern social media (e.g. endless scroll), but it's deeper than that. Most of what is identified as addicting content is an extension of what existed before, but with a far larger pool people accessing it.
At any rate - banning is redundant. Parents are apparently receptive to to the idea that it could pose a problem, to a neurotic level for some. This is a new idea. Let them do their jobs.