Have you heard the term "change in circumstances" ? Many start off in good positions but due to loss of partner, loss of job(s), illness etc etc their lives turn to disaster beyond their control and they are no longer in the position to feed, house clothe when previously they could.
In NZ is pays to have plenty of kids. It makes financial sense for somebody not willing to work, to have many kids. Thats wrong IMO, change of circumstances or not.