Child’s play in my dentist’s waiting room

What is this as opposed to reading or texting? To build something, visualize a story. Why is that “just” a child’s play? Why are grown ups so focused on the linear unfolding of sense in language?

© 2010 Detlef Cordes

If you read a book, or a magazine: is that a “higher”, more evolved occupation than this? Why are there no creative toys for grown ups?