My family was always fine nude in front of each other. But mostly for fairly brief amounts of time and under reasonable circumstances. Getting changed in front of each other. Two people having to shower together for some reason. My sister and I playing some game naked when we were younger. Someone got out of the shower and didn't get changed right away. But also didn't spend more than maybe 20 minutes walking around nude before changing. I could go on but you get the idea. Basically, we weren't shy with our bodies around the house and I always really loved it. But I wouldn't call it nudist, either. That stopped when I was 10 and there was a huge storm and our whole neighborhood flooded. My dad tasked me with feverishly clearing floating brush from the drainage whatever thing in our back yard. I was knee deep in water, in a massive downpour and was completely soaked inside of a minute. After two or three minutes, I thought it was a fine enough reason to just be naked. So I stripped nude and continued to clear brush from the drain for, I dunno, let's say 20 minutes. And it felt exciting in a way I had not felt before. My dad told me a couple times to put clothes on because I was outside and the neighbors might see. I told him no, it's just too wet. There's no point. When I was done and the storm had passed and I went upstairs to shower and towel off. I remember standing naked in my bedroom and thinking, I just want to stay this way. It feels terrific. So I did. I spent the rest of the night nude in front of my whole family for no good reason and I'll be damned if I didn't love every second of it. It was exciting but exciting because it just felt so free not to care. And to be kinda thought of as weird for it but not have anyone demand that I go put clothes on. That was definitely the moment I realized I liked being naked for no reason other than just to be naked.
When I was 8 years old my best friend his family were nudist and when I would spend the night or the weekend I would go nude with them . And we would go out on their house boat and we all would be nude. And ever since then I would go nude in my bedroom or with my best friend.