No. I really love to see results of genetics and even if it is an unfortunate mix I just let them be. Unless! It's a huge deformity like no chin for instance. Then when they grow up they will avail themselves of the newest technological advantage in cosmetic surgery, but I don't usually bother with anything else. Big noses, little noses, weird noses gets to stay, eyes that are maybe too close together or even too far apart get to stay, ears are left alone (yes even the dumbo ones), disporportionate faces are left alone and etc.
I might (read: will) trim eyebrows (and maybe even make them bushier) or maybe get rid of unibrows (and now that I think about it, does the game HAVE unibrows?) and definatly change hairstyles to ones that better suits their faces and/or makes them more attractive/cute and even change haircolor but that is it.