The tragedy isn't just that they're doing this online, it's that it's the only place left. We paved over their physical freedom, then panic when they carve out virtual freedom we can't supervise. And ironically, we moralize their digital behavior while ignoring the real-world conditions that pushed them there in the first place
Seriously. I always hated that mall hanging was organized around an icon of capitalism, but we don't even have those anymore (in many places). The US just doesn't consider public space a thing.
We literally punish them for loitering around anywhere without paying. Or worse, parents are chastised by authorities if they let their kids try to do something on their own.
We really can't be surprised when we close down society and the youth proceed to find the only space not heavily regulated.