15 children... that's a lot of sex. I know another couple like them. The father was very abusive to the wife and children. I hope this is not the case here.
I came from a family of 13 children with similar hardship where my parents made sacrifices to put food on the table and send us to school. A big family was a way of life, and we never dare to question our parents as to why they gave birth to so many of us. Life is a gift, and we were the reasons our parents worked and sacrificed for. Today, from 13 children, we're down to six. Our parents also passed on. Every family has their own unique story to tell.