The home-schooling movement emerged in the 1970s, when it was considered a fringe pursuit. Today, it is probably the fastest-growing form of education in the UK. The number of home-schooled children has risen by about 40% over three years, according to recent research by the BBC. Around 48,000 children were being home-educated across the UK in 2016-2017, up from about 34,000 in 2014-15. Many parents who opt to home-school their children say they are avoiding bullying, exam pressure and stress. Others have concerns about special educational needs ... or the school environment. Esm Biggar, 17, lives [in] Scotland, with her mother, Eula Wilkin. "For some people school is really good, and it works for them because they learn in the way that school teaches," says Biggar. "But ... it doesn't work for everyone. And it didn't work for me." She started at her local primary when she was four and left when she was eight. By then, her mother was horrified by the change in her. "From being self-motivated and able to read and write, and very focused, she came out angry, distressed and completely phobic of any formal type of education," says Wilkin. A decade on, Biggar is happy and confident. She is doing online A-levels in English literature, classical civilisation and philosophy. "The government doesn't want to admit the reason that home-education numbers are rising," says Chris McGovern, a retired headteacher. "It's because schools are failing ever greater numbers of children."