We normally speak of 'single parent
sfamilies.I don't understand the question.Does each one lead the common life to both divorce or separation the same way?Well, single parent families are one result.What are the consequences of "out-of-wedlock birth" and "male unemployment"?
You appear to have misunderstood what was said.
In some families, there is only one parent. This situation may be a consequence of:
divorce: one parent has left.
separation: one parent has left.
out-of-wedlock birth: the father was never around.
male unemployment: the unemployed father may have walked out, or moved away to find work.