Well, it sort of touches on both--I think it is a little weird that more of fandom is interested in working out parent/child issues through orgasms than on exploring realistic issues they'd have. It could be because of fandoms tendency to wank in the literal sense (hey man, I have nothing against it--the internet is for porn, after all) or it could be because so many parents are just dead in fandom. (I'm looking at YOU, Bleach.)

Really, I think there's a wealth of opportunity that often goes untapped both in fic and shows, even setting aside the angsty stuff. Just look at Daddy!