Men giving birth, children with three parents, and other future family law problems

Family law for a long time was only centred on one particular family unit: a man and a woman united in (indissoluble) marriage, and with children. But we now live in a world where marriages often end in divorce; where categories of gender are not as fixed as they used to be and legal men can give birth to children; where children are not necessarily genetically related to their birthparents or indeed may have three genetic parents, and even more social parents. The law has been too slow to react to societal changes and medical advances, and these issues need to be dealt with as a matter of urgency.