lol for the Ritalin xD
No, childrens are always children and almost everything of the character/interests of an human being is brought by education, not genetics. I agree with T.Neo, the main point is the cultural background. In the 60's, the space program was "fashion" (everything was new !). Nowadays, it isn't anymore (and we can understand why : the russians are running a 40 years old rocket/ design, NASA's future seems unclear for the moment, and commercial launches aren't really exciting).
It's also why ideas like "mission to an asteroid" are in my opinion better than "return to the Moon". It's new and exciting, even if it seems a bit unrealistic with today's technology. And a "Mars program" is even better. New, ambitious objectives, are required to keep the people's (and childrens) attention. And communication has to be better and more interesting. Nowadays, children want Medias. Hundred of photographs, quality movies, live mission updates, are needed. The NASA site could be better on this, even if they have an "education" page (its good to see that someone understood it was important !).
To Ark : they also have a full scale replica of the Mir station, it was a model the cosmonauts used for ground training. It has been bought at the price of the scrap metal when USSR collapsed (lol). And the Soyuz capsule has been bought after a reentry, so you see how the metal itself has partially burnt, it's impressive, weird colors !