ABSTRACT Choosing a minimum voting age for an election is a decision that democratic countries make at some point in their history but remains an issue that is periodically revisited. And yet, we know too little about how legislators frame support or opposition to changing the voting age. This article uses frame analysis to explore the arguments made by Canadian legislators to support or oppose changes to its federal voting age. This article poses three research questions and examines two periods of parliamentary debates (1901–1972 and 1972–2022). The analysis finds that the arguments used by legislators in both periods changed very little and that Canadian legislators used changing the voting age as a tool to encourage young citizens to participate in formal institutions of the political process (such as voting) and to discourage youth from protesting or from taking political actions outside of formal institutions.