How much do you edit your born in game sims?

I don't, really. I give them a whole new wardrobe because, face it, some of the clothing our Sims spontaneously end up in is simply atrocious. The only fiddling I will do with their looks, is if there is supposed to be a set of identical twins. I will decide which one I think looks better and then clone that one, deleting the non-identical twin.

If they're born in the game, I edit their faces/bodies little to not at all.

I only fix things that are technical issues, like the fact that Caleb Vatore's children are all born with weirdly tiny eyes, even though his eyes are a normal size. I boost his kids' eyes up to normal, and that's it. Jacob Volkov's first three children got his nose, and all of them kept it. His fourth child may have been made with CAS genetics (it took a long time to get mom's nose), but her siblings got the three best names, so everyone's even, lol.

Well, the cc preset eyes and lips that I tend to use on my female sims looks wonky on male sims. So if my male child inherits them, then I try to edit their eyes and mouth to look more like the father. Other than that, I may change their eye and hair color (both genders)

Always adjust clothes and hair. It's rare that I'll fiddle with their genetics, but if they have a kid that looks less than mm....playable, then in future I might let them have kids by using CAS to play with genetics until I roll one who looks like someone I'm OK staring at for hours.

This thread make me feel like the odd one out.

Everything is fair game. I turn on cas.fulleditmode and go to town. I try to keep their uniqueness and not overly edit. If something looks odd or disproportionate I tweak to what I think looks best.