This article examines whether the voting age should be lowered to 16. The dominant view in the literature is that 16-year-olds in the United Kingdom are not politically mature enough to vote since they lack political knowledge, political interest and stable political preferences (Chan and Clayton, 2006). I reject this conclusion and instead argue that the voting age should be lowered to 16. First, I look at Chan and Clayton's empirical claims and show that these features of 16-and 17-year-olds are in fact created by exclusionary social practices and therefore that these features cannot be used to justify their exclusion from the vote. Second, I evaluate preliminary evidence from Austria which suggests that 16-and 17-year-olds, when actually given the vote, are politically mature. Third, I show that, on a balance of harms, considering that some 16-and 17-year-olds are mature, we still should lower the voting age even if some 16-and 17-year-olds are not politically mature. I conclude that the voting age should be lowered to (at least) 16.