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.
Within the Lifestyle Poll sample, the average age at marriage was also significantly higher than the average age of marriage for the population at large. Specifically, the average age at marriage for women in the Lifestyle Poll sample was 27.17 and the average age for their husbands was 28.94.