...Huh? Why would that be sad? My parents have formative memories of watching the moon landings as kids, and I of watching the space shuttle. As someone who en

...Huh? Why would that be sad? My parents have formative memories of watching the moon landings as kids, and I of watching the space shuttle. As someone who ended up where I am in large part due to my curiosity about the world growing up, reading of OP's kid watching a rocket launch, thinking critically about what they're seeing, and learning more about the world from it is a joyous thing.