Because they do and reminder they are always listening. In the car: 2yo: Mommy. Mommy. Mommy. Mommy. MOMMY! Me: Son('s name). Son. Son. Son. SON. 2yo: MOMMY. Me: Son. 2yo. Mommy. I'm right here. Upon seeing two quarters: 2yo: I need money for dinosaur. Me: Fine. 2yo. I need more money. Me: Me too. 2yo: I need animal crackers. Me: What do you need more? 2yo: I need more money.... may I please have animal crackers?