I'd call it hedonism if a couple wants to be able to go out on a date on a whim, easily take a vacation, watch adult-appropriate movies on a big TV in the living room, maintain good sleep/health habits, keep a flexible schedule unconstrained by school pickups/staying home with a sick kid, etc.
These are all real examples of why people I know delayed having kids, curtailed the number they had, or never had them altogether.
These are all real examples of why people I know delayed having kids, curtailed the number they had, or never had them altogether.