That's a good point, I forgot about the outdoor link. People who spend more time indoors are probably more likely to a. have an interest in computers/knowledge

That's a good point, I forgot about the outdoor link. People who spend more time indoors are probably more likely to a. have an interest in computers/knowledge work and b. more likely to have ample space to spend time indoors comfortably. In many places with multi-generational (cramped) housing, it's common for young people to spend much more time outdoors to get away from their parents.