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.
In eight countries around the world, the average age at first birth is now above 29. Women from poorer nations in Eastern Europe and Latin America tend to have their first child much earlier. The average age in Mexico is a little over 21, while in Latvia it is around 24 and a half.