As I've gotten older, one thing that I've consistently found is that the young want change. Always. Regardless of whether it's beneficial, been tried before and negative consequences were seen, would only benefit certain people or negative outcomes long term are clearly visible: they want change for sake of change.
Older people have a lot more experience in observing human nature. There is a very big reason that the slogans around "Wisdom comes with age" and "Young know it alls" have existed for so long. They've been observably accurate.
It's a lot easier to get people fired up about things that they don't understand, because any contentious subject has two sides and the fire generally shows that you only understand one of them.
“When I was a boy of 14, my father was so ignorant I could hardly stand to have the old man around. But when I got to be 21, I was astonished at how much the old man had learned in seven years.” - Mark Twain