Kids used to say they wanted to become an astronaut when they grew up. Space exploration - that sounded like so much fun.
Kids today should want to grow up to be argonauts instead. World exploration - now that sounds more reasonable.
But kids don't look at practicality at all. But isn't that the point of dreams? They should be as wild and crazy as our imagination allows them to be.
It's not too late to determine what you want to become. You're not grown up yet. No one ever is. That's only true because I won't let my imagination convince me that it isn't.