What Are Your Demands?
In the book Click, Clack, Moo Cows That Type by Doreen Cronin, a group of animals refuse to produce for a farmer until he meets their demands. Read the story together (or watch a read aloud of the book online), then ask the children to make their own list of demands. Give them full freedom to write whatever they want on the list.
When they are done, go through the list of their demands and think together about which of the demands seem like promising ideas and which ones might have unfortunate consequences. Would it, in fact, be better never to have homework?