Student walkouts have changed history before. In South Africa, one helped end apartheid by DeNeen L. Brown (The Washington Post), 14 March 2018
… June 16, 1976, more than 10,000 black high school students in Soweto marched out of school, protesting an apartheid government mandate that they study in Afrikaans, … an inferior “Bantu” education, the students marched to a sports stadium, singing songs and waving signs that read, …