Wow, that is old.
It's an observation based on so very many threads for so very many games, but especially this one. It's not an illogical or unreasonable expectation in the context of adult gaming — very few games introduce attractive female characters without offering the player a chance at them — but it's obviously an illogical and unreasonable expectation in the context of reality, and especially so in the context of this particular story.
With specific regard to this game, the moment Andi stepped into frame people started asking when they were going to be able to fuck her. And they kept on doing it...every release a new wave of questions (and sometimes demands)...right through to the end of the game and beyond (as you can see above).
My observation was largely based on the dissonance between the expectation created by other adult games and the in-story logic of Life with Mary. This is the designated lust object's mother and it's not an incest game. While the DLO seems more or less fine with you fooling around with Simone (depending on your choices) there isn't a single bit of characterization that suggests she'd be okay with you banging her mom and plenty that strongly suggests she's not particularly on board with her parents' sex lives at all. In other words, if you're actually following the story you know that Andi is not going to be a sexual option. Yet many, many people seem utterly baffled that she's not.
The point was more or less as I stated it: the universe of adult gaming has conditioned players to view any potentially fuckable character as actually fuckable, when in fact that's an entirely unrealistic viewpoint and very specifically refuted in this particular story. The Andi saga demonstrates that as well as anything.
Thanks for the detailed response. Sorry for the wait, I finally got the time to reply in detail today. I personally feel that a particular crowd here who prefer the sex scenes more to the writing, dialogue or plot itself will ask the same question regardless of looking at the genre of the title.
As you say here, this subset asked if the mother had a sex scene even though the game is more story focussed and heck, the title "Life with Mary" should give a clear idea with regards to how might the story progress. From parsing through other threads, this issue of a particular character having a sex scene and players asking for incest seem to be the two major things here that I see people ask for many a time. Heck, for those who want it maybe there can be a list of characters that have a route or sex scene etc.
However, I have to say that this is not just a problem here but in japanese visual novels as well and numerous times I remember the player bases complaining to designers to not make the side-characters have as good a design as the main characters!
My own take on the matter is that players should have tempered expectations and carefully read the genres and/or check out the characters with routes before taking the plunge. Also, they should lose the mindset of each and every game catering to their fetishes/likes. In fact, I recently was guilty of this myself when I jumped into a game called "Dreams of Desire" blind and it didn't turn out to be what I expected because I didn't read in detail. I was miffed at the direction of the story and personality of MC but I was the one to blame since it didn't cater to me.
With that said, many of these VN's have a far fetched story anyhow so it's strange that you call this aspect or demand from these users unrealistic when you have plots with a son attracting all his female blood relatives and them sleeping with him readily lol. To stop myself from rambling further, you have to divorce "reality" from these VN's and treat them all as a "heightened reality" where certain things are in the realm of possibility for the sake of the story to move forward.
Anyway, I think a certain group of users will regardless ask this same question while some will actually start to read the tags and do their due diligence before jumping into a, for example vanilla game and the downloader hoping for BDSM lol. Blind jumping into a VN once in a while is great but not always rewarding if the user comes with preconceived notions!