Middle schoolers also play games and deserve to have queer content that they can relate to. Your feelings about older people who play dating sims with little kid characters is TOTALLY understandable but that is a problem with those specific people and that blame should not be shifted onto the developers.
Not to comment on a 2 yr old thread, but i just wanna add to your point that as a queer adult, i was in fact, believe it or not, also a queer middleschooler at one point. games like this give people like me a little chance to maybe revisit a time where we couldnt be ourselves and maybe comfort our inner child a bit. no one is playing this because they want to date middleschoolers