I thought it was cool that the Lanes, a family of weirdos, actually embodied stereotypical suburban family values much better than, say, Daria's family. They had a lot of kids (instead of limiting the family size due to money concerns), several of whom are following in their footsteps as weirdo artists (passing vocational tradition down), and Jane at 15 or 16 has already learned basic childcare from helping out with an older sibling's kids (in-family experiential education). She'd be well equipped to have kids of her own in her early 20s, the sane time to do it although they turned her into a childless NYC stereotype in that "20 years later" thing.
There was that late-series episode where all the Lanes got together and they kind of hated each other, though, so maybe it doesn't work so well. Too bad, it seemed like a good satire of upper-middle-class American values without it being shallow counter-cultural rejectionism.