When couples split up, families move from one to two households. Poverty is a common outcome that affects children. Six out of ten lone parents are supported by the state compared to one out of ten couple parents. That's where most of the £50bn is spent.

A simple policy on marriage for Mrs May
Government policy on marriage is lukewarm at best and downright ambivalent at worst. On the one hand, the state is terribly interested in marriage. We have strict