You can block lesbian content and it won't happen in game.
Scarlett and Daphne practiced kissing once or twice before that event. They discovered that night that their practice had flaws and won't practice anymore with each other regardless if you teach them or not.
The only things that will happen and you won't see are "long information dumps" (there are three in the game so far): If you don't want to read them, the MC will still know the information and reference it.
That's a cool idea I didn't think about. And it can be linked with something I have been hinting at in v.0.18 and will continue in v.0.19 (I can even use your idea in 0.19 to move something forward). Thanks!!!!
If you see the abandoned tag in this game, it will be a year (I think that is what it takes to get it) after my death