Sometimes this is logical, other times it seems like an attention grab. It is fairly common for certain communities on, for example, Livejournal to be overly sensitive to people's 'triggers' (often but not always relating to sexual assault)--any mention of violence may be censored.
Why having kids later is a really big deal. The average age of American women having their first child reached a record high of 26 years old in 2013, according to the Centers for Disease Control and Prevention's National Vital Statistics Report.
The rate took a little dip from 2006 to 2010 (corresponding to the dip in average age of first-time mothers), then made up the ground it lost: In 2012, 11.0 out of 1,000 women were having their first child between the ages of 35-39.