My wife left her job and stayed home with the kids because she thought it would be best. After three years and a near mental breakdown (slight exaggeration), my wife had to go back to work to stay sane. There's only so much diaper-changing, constant cleaning, and Caillou that a person can take before you hit the breaking point. As KC has pointed out, some people are made to be stay-at-home parents and others are not.
I'm amazed at how little I know about things. I had to look this up to see what it is. Had literally no idea. Thought maybe it was a brand of formula or infant food.
Just remember. Old people often have no idea what you're talking about.