First let me say this is not about incest. It about being open with your family and kids. Over my 20 years as a nudist I have talked with many people about an open family nudists. Being open and honest with you kids and family. So much better for kids to learn things from there parents, then a stranger. I was open and honest with my dau as she grow up, and she thanks me for it all the time.
Having two kids myself, I do see a huge difference. We aren't nudists like most people here, but we are all casually naked at one point or another, whether it be changing in hotel rooms, running late and in and out of the bathroom shower, etc. I can't articulate it so I can't write it out here, but I notice in so many ways that would seem unrelated. My kids are just...comfortable...being humans and with themselves. I was raised to be a super prude, so I can really understand the difference; it made me scared of everything all the time. My kids have no problems asking me questions about anything that other kids would never ask and internalize it and have challenges with it later in life, etc. I just wish I could explain it better, but I can't. I guess I don't need to, either.
Being raised about the same as you did, I totally understand, I tried to raise my dau as a nudist and was open to talk about everything. And yes so many can't get there heads around that, I understand, but wasn't going to be for my family. Good luck