More wealth and education gives people the option to choose which I think is a good thing. People who don't want kids shouldn't be forced to have them. Before, people had kids because they needed them to work on their farm or it's what was expected of them as a housewife. Now that we have a choice, less people want to commit to taking care of a human for 18+ years. It's great so many people want to be parents but having a kid doesn't automatically make someone a great parent.