What Makes Public Art Child-Friendly?

I attended a meeting with City of Austin staff yesterday to talk about what it means for public art to be child-friendly. The City is commissioning "child-friendly" public art to be placed just outside the new downtown library. What is a good definition for "child-friendly" public art? What are the key elements that distinguish child-friendly from non-child-friendly public art?   

Here are some of my thoughts. What are yours? 

• Child-friendly art captures a child’s attention and draws them in
• Child-friendly art allows for physical exploration (kids love to touch things and climb!)
• Child-friendly art engages a child's imagination and sense of wonderment
• Child-friendly art, if it is great public art, is loved by people of all ages, young and old

Austin's "Play Me, I'm Yours" interactive art exhibit

Pearl District in Portland

Dallas

Seattle

Dallas

Paris