What is most striking to my eye -- which Kay and Erin hit on, as well -- is that an overwhelming majority of respondents have siblings. Where we fit re: birth order is also interesting, but... Siblinghood is something I have noticed in other parts of theater, performing arts in general, and arts/culture-related jobs. In my graduate program, we realized that in a cohort of around 30-40 students, all but 5 had siblings. One of the first responses to this data was "Oh, of course -- because you always had to share resources!"
Yeah? Nay? I'd love to hear your thoughts.