The large age gap has led the country's youth to accuse the older generation of selling out their futures by cutting them off from the benefits of EU membership.
One person told The Guardian: "We are Europeans. We are citizens of the world. We didn't vote to leave Europe, but you're snatching it away from us."
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Voter turnout is partly responsible for the result. Areas with higher percentages of older voters saw more people voting. The Telegraph notes the three British regions that voted to stay in the EU had some of the lowest turnout.
And education and class also played a big factor in determining the vote. Middle- and upper-class voters, as well as voters with a college degree, wanted to stay in the EU, while people with secondary education or lower supported a Brexit.
This video includes images from Getty Images and clips from 10 Downing Street and Channel 4.