Yeah, you make some very good points: what is preventing non-gamers from playing your game is an excellent question for devs to start with. Nintendo are probably the best example of people who've asked this question: Do you not want to be stuck in your bedroom playing games? Here's the Gameboy, here's the Switch. Do you think gaming is just for people who like violence? Here's Nintendogs. Is gaming not improving your life outside gaming? Here's Wiifit and Pokemon Go.
Our specfic issue is that people who read books often turn their noses up at video games- and with some good reason- writing is very low on the list of priorities of game publishers. Take Resident Evil 4- amazing game, terrible dialogue/ story. Also people are often prejudiced against video games: in the same way that people overvalue food from a restaurant where the menu's in French, or think they're getting more cultural value from a black n white film, people might not think they're being culturally enriched (or whatever) from a visual novel or choose-your-own-adventure video game.
I'll stop before this becomes too much of a rant. Thanks for your reply ;)