How much do you edit your born in game sims?

I always go into CAS and age them up through young adult and look at how they turn out. In the past I almost always had to play around with their chins because it seemed like every one of them when they got to teen would have this weirdly tiny, pointed chin. Like 80-90% of them had this. Lately though it seems that the genetics have gotten a tweak and now I rarely have to edit facial features. Clothes are another story. Even if the game gives them decent looking outfits I give them head to toe makeovers.