They refuse everything you give them. You long for the days of old when a boob would suffice and you knew they were getting all the nutrients they needed. You worry that they aren't getting enough calcium or potassium. Oh crap! What about iron? Do you think they are getting enough iron?
Before having kids, you promised you wouldn't give your offspring Mac & Cheese every night. Instead, they'd be "cultured" and would like things like curry and sushi (at least the unauthentic cooked kind). Now you *actually* have kids and they don't eat squat.