If you're going to embrace nudity at home, then why not in front of your kids, it'll introduce them to nudity and it's probably best to start them young so it's not a thing to them really as they grow up.From the sounds of it I don't think her becoming a nudist in the safety of her home is supposed to extend into public sex in front of her kids. Not wearing clothes is just much more relaxing than having to wear bs like bras/underwear around your own house. More people should try it.(not in front of your kids possibly).
I lived with one gf that had 3 kids, 2 boys and a girl of 10, the boys were probably too old as they were teens, but my gf used to walk around at home naked all the time, I called her out on it one day about her being naked in front of her two sons and she said it was ok, I asked how would she feel if I was naked in front of her daughter and she said it didn't bother her, so to call her out I started walking from the bedroom to the bathroom naked in the mornings, the boys didn't even bat an eyelid when they saw me, the daughter had a good look, but gradually I started being naked all around the house when I was home, unless of course other people were around, but if it was just my gf and I and her kids, then mostly we were naked, even the daughter joined us in being naked most of the time and yes there were times when she would bring friends home without warning and they would get an eyeful.