Sure they can be around 50, more likely 60 and up. There are plenty who are reliving the heydeys of the 60's an' all that. The nostalgia for all the "stuff" that went on then. If folks had any idea of the mindset that longs for those days of yore and any opportunity to relive it. The classic grey haired pony tail dude, etc. And not all are lightweights, some are heavily invested in supporting and participating in events today. Some are quietly likely calling the shots/or contributing to some of these gatherings groups. The well worn playbook still in their pocket. Until you have participated in some of this, you cannot imagine the allure. Glad i am out of that game! If they cant do it, they got their sons/daughters on board, e.g. Alinsky (again).