A booming new generation is emerging in Nigeria, with many members voting in their first election on Saturday after being raised during two decades of civilian rule.

Nigerians aged 35 and under are now a majority of eligible voters in Africa's most populous nation, part of a demographic that will see the continent's population double by 2050. But they chafe under leaders two, three, even four times their age. Saturday's top candidates are "older than Nigeria itself," one first-time voter says.

Now a movement is making room for youthful voters like Usman in Nigeria's rough-fisted electoral process, where so-called godfathers in major parties often dictate who runs with maximum payoffs in mind. Meanwhile, Africa's largest economy limps along on crumbling infrastructure as money is drained away by graft.