I think there's arguments to be made that either it didn't exist or it was just done badly. Either way there was a setup for a potentially interesting arc.
Nothing is ever said about her sexuality, it's always about her gender and how it relates to her chosen profession. Take the same character and have her wanting to be a nurse for example, and I highly doubt she'd be cross dressing in high school. I mean, if anything, I doubt she has any feelings to either sex based on how she presents herself.
In my opinion, Kanji wasn't also really about his own sexuality, just his shadow playing up on his insecurities about what his own hobbies say about it, and being further pushed away by society as a result.
Then again, just that we can HAVE this discussion speaks volumes on how good the characters themselves are. I wouldn't mind having substance abusers or whatever else in the next game, cause lord knows them doing it poorly doesn't even enter the equation, really. Only concern is it's a little too Saturday night movie message-y, ya know? Like you'd almost expect the protag at the end of the credits to be sitting in a suit at the end of a table talking to the audience and giving some helpful tip lines.
To be fair, they had a perfect chance to do something like this with Junpei, and they didn't, so not sure it's an angle they want to.
