Yeah, European.
When I was a child, bullying happened, but it was infrequent. Teachers would punish it severely if reported, but snitching was considered rather shameful, so it was more frequent that bullying was handled by the weaker bullied children teaming against the stronger bully.
Mobbing: weaker children teaming to bully a stronger child
https://en.wikipedia.org/wiki/Mobbing#Development_of_the_con...
European concept with an explicitly English label, from (the eugenicist) Konrad Lorenz "so-called Evil"