Why marches became a visible form of protest
Launch library · evergreen read

A march moves a group of people together through public space, converting individual concern into a visible, physically undeniable demonstration of collective feeling that is considerably harder to overlook or dismiss than a written statement alone. That physical presence carries a weight that words on a page alone rarely achieve.
The visibility of a march serves multiple audiences at once: it signals scale to decision makers, it offers participants a shared, often energising experience, and it gives media coverage something concrete and visual to report on beyond an abstract argument. Few tactics manage to serve so many audiences simultaneously.
Marches have persisted as a campaign tactic across very different eras and causes precisely because this basic function, converting scattered individual concern into a single, visible, shared moment, remains genuinely difficult for any other single tactic to replicate as effectively. That basic function has simply never gone out of date at all.