"Two kids in their dorm room cannot do anything interesting in space."
The Wright brothers didn't create the aircraft in their dorm room - they needed a garage and wide areas in order to do their stuff. Plus they needed wealth, which two kids in their dorm room are much less likely to have nowadays. They need space to construct that sort of stuff, much more than what's needed to build a hot-rod or small aircraft.
As for something interesting in space, the only things left is to colonize another planet (or moon), extract resources from the other planet, FTL jump to another system, etc. Two kids in the dorm room can't build the Lunar Cheese Extraction Facility, nor can they do hyperspace stuff.
The two kids in the dorm room that are capable of designing improved rockets or space vehicles wouldn't be in the dorm room because they would have been hired by any company wanting to do the same type of work.