Before we even dig into the reasons that allegedly support that headline, let’s talk about some category confusion. “Science” tells us what is, not what ought to be. Unless “worst” is qualified (e.g., the worst slope of a hill for achieving greater velocity when dropping a ball from the top), the phrase really has no meaning. Besides, the plain meaning of the reading is that it is “bad” for you.
Alright, let’s look at the reasons that SCIENCE says having children is bad for you. Here are the main points, distilled down.
You will have $13,000 less money per year, a total of over $220,000 by the time the child is 17.
You will sleep an average of 2.5 hours a night during the first two years of a baby’s life.
Your marriage will struggle during the first few years.
You will probably have less sex.
If you’re the mother, you’ll probably make less money.
Also, “Scientists predict that the world’s population will exceed 10.5 billion by 2050.” Which is obviously bad for you.
Point #1: if kids actually cost 13k a year, my parents would’ve been in debt, not putting away (slight) savings. POSSIBLY this can be explained by comparing DINKs (Double Income, No Kids, usually selected for high-power couples with tons of college debt and high demand jobs, no kids) to the “average” reproducing household (usually selecting for single parent households).
Sleep: baloney. Flat out, unadulterated bull based fertilizer. Look, I have five, and inherited one of those wrist band thingies that track sleep– my low point on nights is five hours. Including the “I am starving to death” baby. This might be possible, on some nights, if you have one of those highly irregular schedule jobs. MAYBE.
Marriage: Uh, nope, not unless you married without any idea of having kids.
Sex life: um. What part of five kids did you miss? The only time we have had less sex is when we’re states apart.
Less money: arguable. I could go make money, and then pay out 75-110% of it in child care and job related expenses, plus feeding us. (note: calculations based on Washington state, over five years ago, when my husband got annoyed at me being emo about not bringing in any money; I couldn’t disprove it, no matter how much I researched)
(EDIT: oops, removed the link when I was fixing the quote, forgot to put it back)