It is still sometimes asserted, quite confidently, that teenagers aren't interested in feminism – but the idea has never seemed more laughable. Over the last few years, teenagers and twentysomethings across the UK have been organising, setting up hundreds of feminist groups in schools, universities and online, running campaigns against female genital mutilation and the detention of asylum seekers, while also petitioning for better sex education. This generation is determined to change the world, and they're both intellectually curious, and exceptionally practical.