The Children's Society would "continue to make the case that low incomes needs to be at the very heart of a life chances strategy for children".
If Theresa May wanted to take forward David Cameron's "life chances" strategy, the IFS said, the prime minister needed to focus on lifting the incomes of working households.
Cameron will be disappointed that he was unable to unveil his life chances strategy, which was planned as a major push in the wake of a remain vote.
Cameron will say that the government's Life Chances Strategy – an initiative to target tackle child poverty – will include a plan for "significantly expanding parenting provision".
Unveiling his Life Chances Strategy, the Tory leader hopes the classes will become "normal – or even aspirational – for parents to attend".
However, it also chimes with Cameron's intention to set out a new "life chances" strategy before he resigned following the EU referendum result.
While the second statement had to be taken on trust, like his late-onset "life chances strategy", the first was accepted as fact.
The government says it plans to develop a "range of other measures and indicators of root causes of poverty, including family breakdown, debt and addiction", which it will put together in a "children's life chances strategy".
Some of Cameron's plans, however, such as his life chances strategy due to be unveiled before summer, have been shelved and Whitehall attention is likely to be focused firmly on dealing with the fallout of Brexit.
