Here is a thought for the day: Why are there so many herms around that gladly do anything no matter what? Does being able to dock with anything automatically mean you HAVE TO? Of course, from a writer's perspective the incentive is there to make a character be able to dock a lot of ways so that as many players as possible can enjoy the content you wrote, but at the same time it kind of cheapens the whole experience and removes the human element from the characters that were so carefully crafted.
Humans are complicated. They choose not to do things sometimes because of trauma, sometimes because they rationalized themselves out of it and sometimes for reasons they themselves don't even know. Sometimes there are things people tell themselves they aren't fine doing and they will stick to that decision not for any rational reasons but simply to prove to themselves that they were rational at the time they made that decision. Most of human existence is about self-deception anyway. We act like we have free will and our decisions are perfectly rational when most of the time they are not. So why don't we see more characters that have weirdly specific things they don't want to do for seemingly arbitrary reasons?
Here is an example: A Gryvain that will happily get railed in the ass regardless of your genitalia but won't stick it in your pussy if she has to push past your balls to do so. This is a single sex scene (as I said, all other scenes will still be available) that basically only excludes herms that have testicles bigger than micro-size but so much character can be put into that one trait. If you are a half-gryvain with external testicles, she can keep nagging you about taking draco guard. There can possibly be some backstory with a sexual encounter with a Kui-Tan that didn't go well... So many possibilities all rolled up into a single quirky character trait.
While the temptation may be there to make sex scenes available to as many characters as possible, there is also an opportunity cost associated with this. The more freely available a scene is, the less memorable the character associated with the scene will inevitably be as restrictions give the opportunity to build character. I've gotten to know more about the personality and preferences of characters that at some point went "sorry, I won't do that" than characters that will just happily do anything.
Humans are complicated. They choose not to do things sometimes because of trauma, sometimes because they rationalized themselves out of it and sometimes for reasons they themselves don't even know. Sometimes there are things people tell themselves they aren't fine doing and they will stick to that decision not for any rational reasons but simply to prove to themselves that they were rational at the time they made that decision. Most of human existence is about self-deception anyway. We act like we have free will and our decisions are perfectly rational when most of the time they are not. So why don't we see more characters that have weirdly specific things they don't want to do for seemingly arbitrary reasons?
Here is an example: A Gryvain that will happily get railed in the ass regardless of your genitalia but won't stick it in your pussy if she has to push past your balls to do so. This is a single sex scene (as I said, all other scenes will still be available) that basically only excludes herms that have testicles bigger than micro-size but so much character can be put into that one trait. If you are a half-gryvain with external testicles, she can keep nagging you about taking draco guard. There can possibly be some backstory with a sexual encounter with a Kui-Tan that didn't go well... So many possibilities all rolled up into a single quirky character trait.
While the temptation may be there to make sex scenes available to as many characters as possible, there is also an opportunity cost associated with this. The more freely available a scene is, the less memorable the character associated with the scene will inevitably be as restrictions give the opportunity to build character. I've gotten to know more about the personality and preferences of characters that at some point went "sorry, I won't do that" than characters that will just happily do anything.