An adult is like a big tree in the forest. Just like how a tree starts as a tiny seed and grows tall and strong, an adult starts as a baby and grows into a big person. Adults have had more time to learn and experience the world, so they know a lot about how things work, like how to take care of a house or drive a car.
Think of an adult as a superhero without a cape. They have special powers like cooking dinner, fixing things that break, and making important decisions. These powers help them take care of themselves and others, like their family and friends.
Imagine adults as guides on a treasure hunt. They help kids find their way and teach them important things, like how to be kind and share with others. Adults have been on the treasure hunt for a long time, so they know where to look and what to do when things get tricky. Being an adult means being responsible, which is a big word for making sure things are safe and happy.