Want vs. Need

Tonight during dinner, our 2 1/2 year old decided he’d prefer to skip his green beans and go straight for dessert. He was marching around the table saying “I NEEEED a cookie. I NEEEED it”, and our daughter looked at him and said “you don’t need a cookie, you just want one.” Hmmmm, perhaps some lessons are starting to sink in about want vs. need, afterall?