Will Lowering the Voting Age Change Japanese Politics?

Politics Society

In June 2015, an amendment to the Public Offices Election Act lowering the voting age from 20 to 18 was enacted by the Diet. Starting with next year’s House of Councillors contest, over 2 million new voters will be able to take part in elections. Political commentator Sugawara Taku examines the potential impact of the new voting age on the Japanese political landscape.

Earlier Political Engagement

So how will voting rights for 18- and 19-year-olds affect Japanese elections? Probably not very much, judging by the fact that this age group represents just 2% of the electorate and that turnout tends to be low among younger voters. Elections may become more volatile in the short term, though, as swing voting among the young was a factor in the wildly fluctuating support enjoyed by political parties in recent elections. But I would like to focus here on the longer-term significance and potential of a lower voting age.

There is less grassroots participation in political activities in Japan than in other developed countries. Few voters take the trouble to speak directly with their representatives or take to the streets to protest; for most people, political activity is limited to casting their ballots at elections. Being able to vote two years younger means an earlier start to political engagement. If this brings with it greater political knowledge and interest, future voter turnout—when these voters reach their twenties and thirties—could rise.

Ages 18 and 19 can be considered the formative years in one’s voting career. There are thus moves within the LDP to require high school teachers to maintain political neutrality in the classroom by legislating strong penalties for violations. But the impact of such a law would be limited, since students will already be in the final year of high school by the time they turn 18. By contrast, almost all college students will have the right to vote; given that around 50% of high school graduates in Japan go on to a four-year university, the repercussions of a lower voting age will be much greater on university campuses.

A Greater Role for Politics at Universities

The above figure shows the number of national elections people of different ages have experienced (as of April 1, 2015) since acquiring the right to vote. The blue line is the actual number, while the red line shows what they would have experienced had voting rights been granted at 18. The ages on the horizontal axis are for April 1, 2015, with each gradation including those people in the same academic year (the Japanese school year begins in April). Ages 18 to 22 correspond to one’s undergraduate years at university (assuming advancement to tertiary education immediately after high school).

Overall, the red line runs one or two places higher than the blue line. Thus, if the voting age had always been 18, young people would have experienced one or two more elections. If national elections continue to take place every 18 months or so on average, the lower voting age will essentially mean one or two more opportunities to vote in national elections for younger voters.

The vertical sections of the curve divide those who were old enough to vote in a particular election and those who were not. For example, people born before December 14, 1994, were able to vote in the lower house election of December 14, 2014. This division is represented by the vertical line for the blue curve, to the right of “14 lower house” on the chart.

Since the voting age was still 20 at that time, the line comes during the third year of college. Had the voting age already been lowered to 18, many first-year students—and all second-year students—would have been able to vote, as indicated by the vertical line for the red curve to the left of “14 lower house.” Third-year students may already have taken part in two or three national elections by then.

In short, under the new system, essentially all university students will be eligible to vote, rather than just third- and fourth- year students (along with second-year students with early birthdays). This means that if an election were to take place in the second half of an academic year, the number of potential student voters will increase by over 50%.

Universities may therefore gain greater prominence in the election campaign strategies of many politicians and as venues for political engagement among young people. With all students able to vote, political parties will no doubt give greater attention to winning their support, since securing loyalties while voters are still young could lead to ongoing support for several decades—something that cannot always be said of elderly voters. The lowering of the voting age thus represents an opportunity to get politicians thinking more about the needs of the younger generation.

next: Reaching Out

Related Tags

social security aging population politics elections right to vote silver democracy low voter turnout university students

Other articles in this report