Good thing it's your opinion and not a fact.

Well if you are asexual obviously you will hate sexual stuff, and if there are sexual stuff you shouldnt play this in broad daylight because obviously if you get cought it will be embarassing. But understand that to people that like sex scenes, they can make some eroges/visual novesl, etc, even better, and not just for the fap or anything like that, some well written sex scenes adds to the romantic for people who do enjoy sex. So the best solution is, either being like Neko Para, where you can download a patch to make it 18+ if you want, or if you dont the game only have the romance. Or being like Katawa Shoujo (best eroge/visual novel/etc I ever played), where you can turn on and off the sex scenes in the menu.

I dont agree with you, Katawa Shoujo have sex scenes and they dont downplay how amazingly well written it is. What they could have done is, have the option to turn on/off the sex scenes. Because what you dont seem to understand is, there are people that only play for the sex, people that only play for the well written, and people like me who play for both. So having the option is good, that is one of the things I love in Nekopara and Katawa Shoujo, you can turn on/off the sex scenes.
Also sex can be a very romantic thing if well written, and not just fap material.