"Well, part of why it is how it is is that we've been doing it this way for ages, and the most important part is covering up the sex bits, so everyone is used to only seeing sex bits when they're about to have sex, so now if you don't wear clothes, as a humanoid in my world, everybody thinks you're doing that for some sex reason, and that's very distracting, and also upsetting if you think what's happening is that someone is doing a sex thing to try to steal your mate, or if it's your mate and you think they're trying to get someone else's attention. And Pelor's people think - well, two things, the first being that since everything is mostly okay how it is and it'd be a big mess to try to fix it, we should just keep going how we are, and the other being that even if things weren't like this, it'd be distracting to have people going around naked all the time just because it'd be less clear whether what they were doing was a sex thing or not, and having less of that kind of distraction lets us work together better - we don't have sex in public for pretty much the same reason, it's not how things are done and it'd be strange and distracting and upsetting for someone to be doing it all of a sudden. But Lastai thinks that that isn't giving people enough credit for being smart, and that you could just say, okay, this is allowed now, if someone does it all it means is that they want to and if you don't want your mate to go after other people you should talk to your mate about that, and she thinks that stopping people from doing things that make them happy when you could solve the problem another way instead is bad."