Why is there such a thing as no-fault divorce?

The liberalization of divorce that is no-fault reflects cultural changes.

The law caught up with society in the 1960s. The rise of no-fault divorce can be traced to the recognition that requiring people to state the traditional grounds for divorce often led to fraud or lying; that rehearsed perjury diminished respect for the law; that society had no compelling interest making a couple stay together if the marriage has broken down and the two of them don’t want to stay together. California is generally credited with being the first no-fault state, but by the end of the 1970s all but a couple of states had some form of no-fault.