Both DH and I often shower with all our kids together (we have a double shower head in our bathroom) so nudity is certainly no problem here. I haven't really thought about when we would stop doing that kind of thing, I guess we will just take our cues from our kids. At the moment though, it is not problem. DD1 has asked DH about his bits which we answer simply and try not to make a fuss. I have friends who have stopped showering with their kids as soon as they ask questions, but we don't mind. I think it is part of life.

My Dad was still walking around the house naked when I was 19. He had done it all my life, so I didn't really think much of it that he continued to do it my whole life. My brothers never really learned to wear clothes either though, so it was not uncommon for them to be naked at home when I was growing up. They didn't sit around naked, but they wouldn't bother getting dressed if they were walking from the bathroom to the bedrooms or vise versa and they all slept naked. I grew up with nudity and it doesn't bother me, but then I don't see it as sexual either. Some people do though so I guess it just depends on your perspective and how normalised it is for you.