Based on conversations I have had with young couples I know who are choosing to not have kids, the economy and cost of living is the number one reason. Put bluntly, they don't give a shit if celebrity couples aren't having kids and that's not an influence, they're not having kids because the cost of childcare is prohibitive, the cost of living for many young couples has become prohibitive, and it's a matter of money. Buying a home is now out of reach for many young couples, and might always be, and rent is insanely high as well, as is the cost of college. I know couples where the wife got pregnant and they had to give up jobs they liked and move back to be close to their parents because they couldn't afford daycare for the kids and so the parents agreed to do it. And - I know this horrifies conservatives - but we now live in a society in which it is acceptable to make your own choices about whether to have kids. My wife and I don't have children, and we didn't choose to do so because some celebrity didn't, it was simply our choice. I have spoken to older conservative relatives and people I know back home who have looked at us with shock and horror when we say that we don't have children; it is simply unfathomable to them. Welcome to the 21st Century, folks.