There may be ways in which we can work for change. We don't have to do dramatic things or devote our entire lives to it. We can lead normal lives but at the same time try hard not to be bystanders.
My dad tells me that he took us to a pantomime when I was very, very small - panto being a sort of English phenomenon. There's traditionally a part of the show where they'll invite kids up on the stage to interact with the show. I was too young to remember this, but my dad says that I was running up onstage before they even asked us.