Life in Beijing is much better than back in rural Hebei, says Li: his wages cover the family's rent, tuition for the underground school for migrant children that his kids attend, as well as the odd night of karaoke.

CNN: ASIANOW - TIME Asia | The Numbers Game

Some of the children travelled to performing arts school in London by train and underground during the rush hour, the jury heard.

BBC: Amanda Webber

Evidence of consumer distress with public education is provided by the growth of private schools, whose proportion of total enrollments has edged up in recent years from 12.5% of total enrollment to 14.6%, and the silent spread of a well-organized underground subculture of parents who educate about 50, 000 children at home.

FORBES: Are We Spending Too Much On Education?