What do 'Kids' NEED to want to go outside and play? In this simple translation and application of Basic Needs Theory (mini-theory of Self-Determination Theory [Ryan & Deci, 2017] readers discover how meaningful people and places are in creating opportunities for kids to play outside. But, that's not all! Kids and adults alike will learn that knowing they decide, thinking they can, and feeling they belong are the foundations that inspire their desire to play outdoors.