From Reaching Full Literacy in Pakistan by 2025, a report commissioned by Pakistan Tehreek-e-Insaf Party Chairman Imran Khan released this week:

While it is tempting to argue that the priority is to ensure that no child leaving primary education is illiterate, the evidence from both Pakistan and elsewhere is that adult illiteracy has a direct effect on the performance of the young. In effect, addressing adult illiteracy is a key step to ensuring that all young people become literate, especially as adult illiteracy is one reason why children drop out of school early. (my emphasis)