Trust me as a teenager who has seen the effect of social media on dozens of his peers and even close friends I can assure you I know far more than both you and the parent comment how dangerous it is for us, but I'm also aware of the possibility of using it and the internet as a whole in a responsible manner as opposed to completely abstaining from it.
>By analogy I think it’s fairly obvious as a parent you’re right to withhold bottles of vodka from your kids even when they separately want to down them “and all of their friends are doing it”.
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Vodka, or any hard alchohol in general is far harder to get your hands on than social media and has immediate, physical consequences relatively soon after consumption, it's a terrible comparison in this case.