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.
Five years ago, the UK had the highest rate of family breakdown in Europe. We're not doing as badly today, but only because of big falls in divorce rates. Alas there's no sign of a similar improvement among cohabitees