A Very strange and a wiered outlook on life and the human body I think. Or just hiding something from your parents.
Unless the kid(s) express discomfort at the sight of their parents' nakedness, why see an issue when there isn't one?
When i grew up we were in a small house, lots of us. Although we weren't nudists, we saw each other naked fairly often. I did not really think about it at all. With my family now its not quite as much but we don't hide it or flaunt it. Everyone seems comfortable.
My parents are older naturists, so I’ve been raised in a naked family household my entire life! Obviously when me and my older siblings were younger my parents would cover up when it was truly appropriate. But now since all of us are adults it’s like kind of an “I don’t care” situation. If someone in the home wants privacy then they simply go into another room with the door shut, but otherwise all of us go fully nude or halfway clothed most of the time. I feel like me and my siblings have developed such a strong confidence in our bodies because of them and I’ll always be so grateful that I get to live with these kinds of people!!