I have now witnessed several of these parades. I don't know why they are formed or who is involved, but they seem to come out of nowhere and have cars and trucks loaded with students of all ages, with transportation provided by adults as well as students. The signs look like its a contest or campaign of some kind. If this occurred in my hometown of St. Paul, Mn. there would have to be liability releases, permits issued, and police escorts. These seemingly spontaneous parades look like they're lots more fun! See an earlier posted parade RIGHT HERE. Notice that pretty girls are always an integral part of the parade. Perhaps this one is celebrating International Women's Day March 8th in her own way!