- With Ryn, I'm forced to think about that and it's all the more awkward because I know the context behind it and the PC can be romantically invested with her. It's a lot more personal because of the emotions your PC and her can have towards each other.
You can be romantic towards her...but you can also basically drive her crazy. I don't think the romantic feelings preclude the fetish. The cage serves to solidify Ryn as a subby little elf, and that's the fetish.
Cumflation isn't actually that niche, especially when it comes to futa media from what I've noticed. It seems to have a bigger crowd than chastity, that's for sure.
Futa media is already niche. This is a niche of a niche. Search for "cumflation" on any hentai site and see how drastically it lowers your results. I'm a big fan of the stuff, and let me tell you, it's pretty damn rare.
Though, I'm not sure how "real" a fetish is has to do with how niche something is. Monster girls are common as shit, especially if you count succubi as one, yet they're not "real" by any means.
Common for people who hang out in the places we do. Your average person has never seen or heard of monster girl porn.
They have probably seen and/or are aware of pregnancy fetishes. Fetishes that can show up in "real" porn are always going to be far more widespread.
Even if the chastity thing is a fetish that for some reason NEEDS to be in the game despite it undoubtedly being one of the more niche things, they could just make it optional. Have it be some kinky play between you and her or some shit. Why is it absolutely NECESSARY that she be locked up by default with no current way to undo it?
Whi said it NEEDS to be in the game? Someone wanted it in the game? Like every other fetish. Futa are in the game because the authors like futa. Horsedicked centaur chicks are in the game because Wsan loves those.
Also, the fact there's no way to free her from it right now doesn't really mean anything. This is a game in development; options not being available immediately is part and parcel of the experience.