Whereas stability is the norm if parents are married (75% stay together), it is the exception if they are not (30% stay together). As a result, among parents of teens who are still together as a couple, nine out of ten are married
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.