What does young Carl want to be when he grows up?

Young Carl wants to be an explorer when he grows up.

As a child, Carl idolizes Charles Muntz, a celebrated adventurer whose exploits are shown in a newsreel. Carl watches Muntz pilot the airship Spirit of Adventure and becomes fascinated by the idea of traveling to unknown places. His enthusiasm is expressed through his toy dirigible, flight helmet, goggles, and make-believe adventures.

Carl’s dream becomes closely linked with Ellie’s. Ellie is also a Muntz fan and hopes to travel to Paradise Falls in South America. She asks Carl to promise that he will help take her there, a promise that shapes their life together and eventually motivates Carl’s balloon-powered journey after her death.

Carl does not become a conventional professional explorer in the way Muntz does. Instead, his lifelong adventure is personal: he travels to Paradise Falls to honor Ellie and move beyond his grief. A common mix-up is answering “pilot,” since young Carl pretends to fly, or “balloon salesman,” which is his later occupation. The story presents exploration as his childhood aspiration and emotional ideal.