"Maybe it's because we've been hopelessly coddled and our brains, with their flaccid synapses, have been massaged into thinking we could land our dream job at 23. Or! Maybe it's because the world changed, and it doesn't make sense to start a family at 24 in the shadow of $15,000 in debt with a thimbleful of jobs that don't provide health care or the promise of stability." [emphasis mine]
The Atlantic has a brilliant response to all the garbage about Millennials. Short answer: It's the economy, stupid.