As a child, everyone created without boundaries ; free to let his imagination guide the creation. One might argue that children do Art and not Design. The difference between Art and Design is often characterised by the fact that Design serves a purpose : there need to be a functionality. Fair enough, but in some cases, it really is Design (build a house for a bug, create a wood cabin…). What makes the children so happy about realising their first design is the feeling of pride when they can show their realisation?