Why do Marching Bands still exist? And are they a uniquely USA phenomenon?

[OldRooster]

Marching Bands originated in the 1700s as a way to rally troops prior to battles. High Schools and Universities formed similar bands as a form of entertainment during sporting and other events. But the same function can now be achieved much easier and better by a loud speaker system. And who the fuck are these people that bother to purchase and learn to play something like Trombone?

eta: not sure why my pics are not loading.

 

[asdvek]

it's not just about the sound, it's about visual, physical spectacle, a marching band is 100-300 people, a speaker can't do that