What does it mean to be a kid at heart?

What does it mean to be a kid at heart? For me Being a kid at heart means maintaining a playful spirit, enjoying the little things, being full of curiosity, regardless of your age. As everyone says, it’s about enjoying your life. It’s about approaching life with a sense of fun and creativity and not letting the responsibilities and stresses of adulthood overshadow your ability to enjoy simple things and embrace the childlike aspects of life.