This distinction doesn't really exist. Does "school" include virtual learning environments? School sports? Travelling to and from school or sports? Bullying that extends from school to out of school?
Traditionally, schools have always been responsible for these things or have taken actions that occurred out of school grounds into account.
I finished school in the early 1990s and students were expelled then for graffiti attacks out of the school, out if school hours, not in school uniform.
I don't see what is different or new here.
That's fair as far as it goes, but I'm not claiming it's different or new; I'm claiming it's bad and needs to be stopped.
> Does "school" include virtual learning environments? School sports? Travelling to and from school or sports?
Probably. Probably. Debatably and depends on the mode of transport.
> Bullying that extends from school to out of school?
That's two items; yes to the former, no to the latter.
If they're making a nuisance of themselves at school, the school would presumably give them a detention, with repeat offences eventually resulting in expulsion. If they're making a nuisance of themselves elsewhere, the school is not involved. (Note that the latter applies to criminal actions as well; that's what the police are for.)
0: That is, from "X implies Y" to "Y implies X".