Although most countries allow citizens to vote at age 18, three-quarters of parliaments have no members in their 20s.[i] Only one country, Norway, has more than 10% members of parliament under age 30 (next highest are Denmark with 9% and Cuba with 6%) Although youth quotas could insure more equitable representation, few countries have them. Only one-third of young legislators are women, according to a survey by the Inter-Parliamentary Union that created a Forum of Young Parliamentarians in 2013. The 2014 survey found that about one-third of the nearly 100 responding countries have youth parliaments.
[i] “Youth Participation in National Parliaments,” Inter-Parliamentary Union, 2014.