THOUSANDS of children in Britain could be lifted out of poverty with a “lock” on child-related spending by the government, a charity study revealed today. 

This “double lock” or child lock on child benefit for most families — similar to the pensions lock — and social security payments for children from low-income backgrounds, as of 2025, would see 40,000 fewer children in poverty in a decade, according to Save the Children.

If coupled with scrapping the two-child limit and benefits cap, the figure would be 80,000, the charity said.