It's a night for grandmothers.Amanda Smiths husband is out of town, and her kids have the day off school. Shes tired, but shes still got to make dinner. Her daughter helps pour a box of macaroni and cheese into a pot. She laughs, realizing they did it wrong.Sometimes I want to pick up the phone and call her, but then you realize the reality, Smith said. In the other room, her 6-year-old daughter Remi plays with Barbies and eats an apple.Mamaw is…