How much do you edit your born in game sims?

So far, I usually change clothing, nails, accessories, hair styles, makeup, once in a great while hair color, and sometimes things I can change without cheats.. But since I play with aging off most of the time, many of the sims I play have been made in CAS. I have noticed that in game sims usually look ok as a children, sometimes they look a bit strange when they get to teen years. I like being able to pick traits and control skills, likes and dislikes. I even wish we could pick the lifestyles we want our sims to have ( without cheats ).
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I will often go in and change townies hair, makeup nails and accessories …… if the townies look too bad, I may get rid of them all together.