When I, a normal person, sees something like this in a game about going to high school, it makes me remember going to high school. It makes me think about girls from high school that were contemporary to me.

That's not a weird thing. It's people who are perceiving it weirdly in the first place projecting their own weirdness onto everyone else.
What, I can't watch Stand by Me and get nostalgic about being a kid because I'm an old man now?