Take your kids someplace and make stuff. They need to learn how to work with different materials. They need to understand that reality is what happens between the planning and the making. Flexibility means to work around the mistakes. Experimentation is what we call "work". Experience means you are better at working with your mistakes, and care less about them. Art is a perfect medium to explore all of the above. Creating something of emotional value is a skill we need to grow in our children.