There is definitely a place for things that are not shameful, but not spoken about. I am not ashamed to go to the bathroom, but do not talk about it.
I live in a society where all sex related things are in that category. It is impolite and discouraged to randomly talk about anything sex related. But if you have reason [for example consulting with someone with more experience], than it is encouraged and totally OK.
There are VERY strong social norms, including not to be queer, not to view porn, not to commit adultery [to use the example of the OP]. Someone struggling can talk openly to get help. Someone who disagrees (eg. gay) will usually leave the society where they are not accepted.
It is a shame to confuse privacy and self respect with shame.
I live in a society where all sex related things are in that category. It is impolite and discouraged to randomly talk about anything sex related. But if you have reason [for example consulting with someone with more experience], than it is encouraged and totally OK.
There are VERY strong social norms, including not to be queer, not to view porn, not to commit adultery [to use the example of the OP]. Someone struggling can talk openly to get help. Someone who disagrees (eg. gay) will usually leave the society where they are not accepted.
It is a shame to confuse privacy and self respect with shame.