Baldur's Gate is set in the Forgotten Realms, a morally grey world with all the trappings of the real world, and characters who are broadly speaking just regular people. You think there wouldn't be a Brothel or 20 in the whole of the city of Baldur's Gate when we've seen them in previous games like Neverwinter Nights? There are already plenty of sexless RPGs out there for people to play who don't want to see nudity or anything like that. Fantasy adventure games don't need lots of things. They don't need high fidelity AAA graphics, but BG3 is investing a ton of its budget into visuals and animations. They don't need multiple races to choose from, but Larian is putting the effort in to make sure NPCs in the world respond differently based on your race and even subrace. Fantasy adventure games don't need classes, you could easily be playing a game where you're forced to be a sword-user. They don't need to have blood or murder or death either. We could have Pokemon combat where the animation involves your character bouncing slightly in the air and a white flash that results in the enemy hp draining.
Saying an RPG doesn't need something really isn't the point. Its an option that you aren't going to be forced to engage in. Even if it were for the sole purpose of titillations, why is that a problem if that's what the devs choose to add to a game? If a significant number of players want that type of content in their fantasy games, and the abundance of NSFW mods in other fantasy RPGs and their popularity gives me full confidence that they do, why fuss over it? If I don't want to play as a halfling cleric. I don't have to. If you don't want to see a nipple, you don't have to. We really should be past this sort of argument at this point. It's an adult game for adults, and is labelled as such.
I don’t get your argument; classes, races, fighting have always been an integral part of playing D&D CRPGs so one would expect to find them in the game…are you suggesting graphic sex is as an integral part? Do people who play tabletop D&D roleplay in graphic detail sexual relationships or orgies during their campaigns? I genuinely don’t know because I never played it.
Where did I ever state there wouldn’t be a brothel or sex in Faerun? There was a brothel in BG2, nobody is disputing that they don’t exist in D&D world. I just don’t feel you need to have vivid depictions of a blow job to somehow reveal some profound insight into a character.
I haven’t played the game in a long time but I do recall being propositioned by my companions from very early on with minimal interactions. I wasn’t forced to engage with it but it was very much shoved in my face from the outset. Perhaps that has changed in recent patches?