This is the Way Life Goes
Under American (or British?) standards, getting married means having kids. Well, at least it did for the previous generation. These folks seem to have gotten caught in an old-people-trap.
Sometimes It Be Like That
Young parents always seem to go straight from living it up on Facebook and then exclusively complaining about their children after they have them. It's a vicious cycle, and it affects everyone that has kids early in their lives. Sooner or later, they learn to get over that though.