Why do women and men put little emphasis on planning when having kids?

I usually find is educated and professionals that they usually get married and education complete have a career, buy a house or cottage then have kids. Yet it would seem that 60 % of couples don't even remotely think in this way. Rather men and women have kids with people who they should not be having kids with and then wonder, well this man can't support a family because he works at Walmart making minimum wage and the girl is a drop out. Yet people have this idea that emotions will pay the bills at the end of the month when in reality no they do not. Getting evicted, no food, no stability, arguing and poverty. I often wonder what happened to common sense when having kids.
Why do women and men put little emphasis on planning when having kids?
Post Opinion