but the point is they dont suddenly get upset, my eldest child stopped wanting to get in the bath with me, i dont even remember when as it was a very gradual process, he knocks and then comes into the bathroom to chat to me sometimes when i am in the bath. that is his choice, we arent forcing nudity onto our children, ds1 now generally showers with the bathroom door shut, if someone needs to go in he may or may not wrap a towel round himself, he happily wanders round in his boxer shorts etc, this is all his own choice i dont force him to come into the bathroom when i am in there. he is setting his own boudaries with what he is comfortable with.
just as ds2 is, who is almost 10, he doesnt always like to bath with his siblings but sometimes is fine with that, he still currenlty happily wanders around naked after getting out the bath, he will come in the bathroom when i am showering but doesnt ask to get in the shower or the bath with me anymore, again i dont remember when he stopped doing so, probably in the last 18mths, he certainly had a bath with me when i was 8, not taht i stayed in it long as there wasnt much space.
i think you are underestimating the abilities of children to vocalise when they are upset, or dont like something, maybe some children wouldnt, but i know mine would, for instance my dad is staying at the moment and is actually sleeping in ds1's bedroom, he went to get something yesterday and knocked on the door and ds1 simply said, 'i am getting changed hang on a minute' he is capable of asking for privacy and of NOT coming into the bathroom if i am in there naked. ditto when he brings me a cup of tea in the morning occasionally, he wouldnt have to come into my bedroom he could leave it outside and i would get it, but he is happy to make me and dp a cup of tea, maybe sit on the edge of the bed and chat it he wants to (very rare that we actually get a lay in like this! but it does happen)
why is it alright to have images of strangers or any body else of the opposite sex but not your parents, i saw both my parents naked and tbh i would struggle to recollect the image in detail, as i said i have clear images of sitting chatting to my mum in the bath but the main memory isnt of her being naked its the chat we had and that it was nice to spend some time together esp as my little sister had not long been born, so it was rare to have time to just sit and chat.
children arent fixated on boobs and penises, they def go through phases of finding them funny and odd but they dont stare at them and build up a mental picture that they store in their brains like you seem to assume my children from a young age have been told its rude to stare and as they are used to me being naked in the bathroom its not a sight that would make them stare!
incidentally my dad was having a shower this morning, and ds3 went into the bathroom to have a wee, after knocking! he was most interested in the fact that my dad has scars on his neck and chest from cancer treatment, didnt give a dam that he was naked, but asked about the scars and then commented that my dad has a bit of a hairy back unlike dp!
btw merrymouse i LOVE your name, we call our dd merrymouse, she is merryn and gets called merrynmouse, but its often shorted to merry as well! :)