It again shows that too much private information should not be shared. How would you even know if you were not told.
A few years ago a friend of mine was getting married. They had both been married before and were not JW at the time of their first marriages. They had a meeting with the elders prior to the wedding, both already in their 40s with grown children and the elders asked them if they were going to have children together? They said no and the topic of contraception came up. The brother revealed that it would not be a problem as he had a vasectomy years ago.
The elders were not happy to hear this and made sure to find out when it was that he had the vasectomy. He had it done pre witness days but come on!! How is any of this their business?? Why answer them instead of saying mind your own business.