When I was in high school, I went to an anti-Vietnam war rally in Washington. I don’t recall who the speakers were or anything else about the rally. To be honest, I think some kids went because the drinking age in PA was 21 and the drinking age in DC was 18. ( didn’t drink…yet.)
This is all I remember. We went by bus from the Philadelphia suburbs. The bus pulled over once and kids went off into the woods to go to the bathroom. This old lady (she was probably 35) squatted about 10 feet from the bus to go and had all the kids still on the bus watching her.