I think this is a solid point. teenage boys definitely have their own "hated things" that, as a group, they tend to like. one possible difference is that there's a vocal segment of adults who also enjoy these things. when I was a kid, adults in my life didn't understand how I could spend so much time "staring at a brown wall" (I spent a lot of time on 24/7 dust2 servers). but a decade or so later, it's pretty common for adults to play those sorts of games. I don't think it's quite as acceptable for adult women to still enjoy twilight. if I had to generalize, I'd say there's a greater expectation for women to "grow out of" their teenage interests. but it varies a lot for each specific interest, not sure how well that generalization holds.
Maybe we adult men can more likely get away with holding onto our adolescent obsessions because we already tend to have more power than our female counterparts. I recently re-read _Ready Player One_, and now that I think about it in this context, it's largely about a billionare who became so powerful that he could not only hold onto his 80s obsessions for his whole life, but give the rest of the world a powerful incentive to share those obsessions.
I think this really depends on who you talk to. I know lots of professional adult women who are super into Korean boy bands, but they don’t feel obligated to hide it from friends and coworkers, and I’ve never heard anyone express a hint that they need to grow out of it.
