I recall an incident quite a few years ago when most of the students in the high school where I taught had a walkout. Or perhaps we could call it a “walk-in”, since they went to one of the gymnasiums and refused to go to class.
It was not a protest against the administration or teachers, in fact it was an action designed to bring attention to their desire to have a cafeteria in the school, mainly done in hopes of attention from the community, municipal council, and school board.
While teachers and The Office were very sympathetic to the purpose, a school can’t run with about five-hundred students in the gymnasium, so eventually the principal called their attention, described how he agreed with the idea, etc., etc., and then formally ordered them to leave and return to classes.
They didn’t go.