the games themselves were made to sell their niche demographic. At the time that was young white boys

In the beginning, before Nintendo started hammering the idea that video games were for kids, games were often targetted for an older audience. This is particularly true of home computer gaming, the bread and butter for the likes of Sierra and LucasArts. Even after the Nintendo there was still a lot of mature and even adult content being made, as well as content in genres less popular to children such as simulators.

From my own experince: Sierra’s Roberta Williams was the designer of the whole King’s Quest series (I believe?), and I remember a lot of discussion about them (and especially hints lol) on my BBS by men and women alike, nearly all working adults. I can’t speak for the entire demographic of King’s Quest players but I mean people logging into BBS’s probably were the main demographic lol.