Scorned by some, envied by others, flat-out ignored by still more. This thing, the Red Sox fan. You folks living outside of New England may wonder about this prevailing nationwide and regional condition from a nurture vs. nature angle. I mean, is it a birthright? Is it genetic? Is it a bandwagon deal? At least for some, it begins in the 4th grade. My daughter brought this handout home from school the other day . . .